Biology Study Guide | Biology Notes | Exam Guide | Questions & Answers

  • Biology Study Guide | Biology Notes | Exam Guide | Questions & Answers
  • Biology Questions and Answers Form 1 - Biology Quizzes, Trivia, Answer
  • Biology Questions and Answers Form 2 - High School Biology Tests/Exams
  • Biology Questions and Answers Form 3 - High School Biology Tests/Exams
  • Biology Questions and Answers Form 4 - High School Biology Exams Q & A
  • Biology Diagrams - Images for Biology - Diagram Examples for Biology

    The Science of Biology

  • Introduction to Biology
  • Characteristics of Living Things
  • Characteristics of Living Things Test
  • Scientific Method
  • Scientific Method Test

    The Chemical Basis of Life

  • Acid and Bases
  • Acid and Bases Test
  • Molecules
  • Molecules Test
  • Organic Compounds
  • Organic Compounds Test
  • Elements and Atoms
  • Elements and Atoms Test

    The Biology of Cells

  • Cells Define
  • Movement through the Plasma Membrane
  • Movement through the Plasma Membrane Test
  • The Structure of Prokaryote and Eukaryote Cells
  • Prokaryote and Eukaryote Cells Test

    Cells and Energy

  • The Laws of Thermodynamics
  • Chemical Reactions
  • Chemical Reactions Test
  • Enzymes
  • Enzymes Test
  • Adenosine Triphosphate (ATP)
  • Adenosine Triphosphate ATP Test
  • ATP Production
  • ATP Production Test

    Photosynthesis

  • Photosynthesis Defined
  • Photosynthesis Test
  • Chloroplast
  • chroloplast Test
  • Photosystems
  • Molecules Photosystems Test
  • Process of Photosynthesis
  • The Process of Photosynthesis Test

    Cellular Respiration

  • Introduction To Cellular Respiration
  • Glycolysis
  • Test on Glycolysis
  • Krebs Cycle
  • Test On Krebs Cycle
  • Electron Transport System
  • Test On Electron Transport System
  • Chemiosmosis
  • Chemiosmosis Test
  • Fermentation
  • Fermentation Test

    Mitosis and Cell Reproduction

  • Cell Cycle
  • Cell Cycle Test
  • Cell Nucleus
  • Cell Nucleus Test

    Meiosis and Garment Formation

  • Meiosis
  • Test Meiosis
  • Meiosis in Humans
  • Meiosis in Humans Test

    Classical(Mendalian)Genetics

  • Introduction to Genetics
  • Inheritance Patterns
  • Inheritance Patterns Test
  • Principles of Genetics
  • Principles of Genetics Test

    Gene Expression(Molecular Genetics)

  • DNA Defined
  • DNA Replication
  • DNA Replication Test
  • Protein Synthesis
  • Protein Synthesis Test
  • DNA Structure
  • DNA Structure Test
  • Gene Control
  • Gene Control Test

    Recombinant DNA and Biotechnology

  • Recombinant DNA
  • Pharmaceutical Products
  • Diagnostic Testing
  • Diagnostic Testing Test
  • Gene Therapy
  • Gene Therapy Test
  • DNA Fingerprinting
  • DNA Fingerprinting Test
  • Searching for DNA
  • Searching for DNA Test
  • DNA and Agriculture
  • DNA and Agriculture Test
  • Cloning and Stem Cells
  • Cloning and Stem Cells Test
  • Tools of Biotechnology
  • Tools of Biochemistry Test
  • Transgenic Animals
  • Transgenic Animals Test
  • Human Genome
  • Human Genome Test

    Principals of Evolution

  • History of the Theory of Evolution
  • Evidence for Evolution Test
  • Mechanisms of Evolution
  • Mechanisms of Evolution Test
  • Theory of Evolution
  • Theory of Evolution Test
  • Evidence for Evolution Test

    The origin and Evolution of Life

  • Origin of Cells
  • Origin of Cells Test
  • Ancient Life
  • Ancient Life Test
  • First Eukaryotes
  • First Eukaryotes Test
  • Life on Land
  • Life on Land Test
  • Origin of Organic Molecules
  • Origin of Organic Molecules Test

    Human Evolution

  • Human Evolution Test
  • Homo Erectus
  • Homo Erectus Test
  • Homo Sapiens
  • Homo Sapiens Test
  • Australopithecus
  • Australopithecus Test
  • Homo Habilis
  • Homo Habilis Test

    The unity of Divesity

  • Basics of Classification (Taxonomy)
  • Basics of Classification (Taxonomy) Test
  • Kingdoms of Living Things
  • Domains and Kingdoms of Living Things Test

    Monera

  • Intro to Prokaryotes and Viruses
  • Prokaryotes and Virues Test
  • Domain Bacteria
  • Domain Bacteria Test
  • Cyanobacteria
  • Viruses
  • Viruses Test
  • Domain Archaea
  • Domain Archaea Test

    Protista

  • Algae
  • Algae Test
  • Oomycetes
  • Oomycetes Test
  • Protozoa
  • Protozoa Test
  • Slime Molds
  • slime-molds Test

    Fungi

  • Fungi Defined
  • Fungi Test
  • Ascomycetes
  • Ascomycetes Test
  • Basidiomycetest
  • Deuteromycetes
  • Deuteromycetes Test
  • Fungal Disease
  • Fungal Disease Test
  • Fungi Test
  • lichens
  • lichens Test
  • Zygomycetes
  • Zygomycetes Test

    Plants:Diversity and Reproduction

  • Plants Diversity and Reproduction Test
  • Introduction to Plants
  • Nonvascular Plants Defined
  • Novascular Plants Defined Test
  • vascular Plants Described
  • Vascular Plants Test

    Vascular Plants: Structure and Function

  • Vascular Plants
  • Ground Tissue
  • Grouned Tissue Test
  • Dermal Tissue
  • Dermal Tissue Test
  • Meristematic Tissue
  • Meristematic Tissue Test
  • Roots
  • Roots Test
  • Stems
  • Stems Test
  • Leaves
  • Leaves Test
  • Vascular Tissue
  • Vascular Tissue Test
  • Water Movement
  • Water Movement Test
  • Plant Hormones
  • Plant Hormones Test

    Animals:lnvertebrates

  • Cnidaria
  • Cnidaria Test
  • Platyhelminthes
  • Platyhelminthes Test
  • Annelida
  • Annelida Test
  • Mollusca
  • Mollusca Test
  • Arthropoda
  • Arthropoda Test
  • Invertebrates
  • Porifera
  • Porifera Test
  • Nematoda
  • Nematoda Test
  • Echinodermata
  • Echinodermata Test
  • Chordata
  • Chordata Test

    Animals:Vertebrates

  • Animals Vertebrates Test
  • Fishes
  • Fishes Test
  • Amphibians
  • Amphibians Test
  • Reptiles
  • Reptiles Test
  • Birds
  • Birds Test
  • Mammals
  • Mammals Test

    Nutrition and Digestion

  • Introduction to Nutrition and Digestion
  • Human Digestive System
  • Human Digestive System Test
  • Nutrition In Animals
  • Nutrition In Animals Test

    Gas Exchange

  • Human Respiratory System
  • Human Respiratory System Test
  • Mechanisms For Gas Exchange
  • Mechanisms For Gas Exchange Test

    Blood and Circulation

  • Circulatory Systems
  • Circulatory Systems Test
  • Human Circulatory System
  • Human Circulatory Systems Test

    Excretion and homeostastis

  • Excretory Systems
  • Excretory Systems Test
  • Human Excretory System
  • Human Excretory Systems Test

    Chemical Coordination

  • Excretory Systems Test
  • Excretory Systems
  • Excretory Systems Test

    Nervous Coordination

  • Animal Nerve Cells
  • Animal Nerve Cells Test
  • Human Central Nervous Systems
  • Human Central Nervous Systems Test
  • Human Pheripheral Nervous System
  • Human Peripheral Nervous System Test
  • Human Senses
  • Human Senses Test

    Ecology

  • Ecology Test
  • Communities
  • Communities Test
  • Ecosystems
  • Ecosystems Test
  • Biosphere
  • Biospheres and Biomes
  • Populations
  • Populations Test

    Reproduction

  • Human Reproduction
  • Female Reproductive System
  • Female Reproductive System Test
  • Fetilization and Development
  • Fertilization and Development Test
  • Populations Test
  • Birth
  • Birth Test
  • Fetal Development
  • Fetal Development Test
  • Male Reproductive System
  • Male Reproductive System Test
  • Embryonic Stage
  • Embryonic Stage Test

    Support and Movement In Animals

  • Human Muscle
  • Human Muscle Test
  • Skeletons in Animals
  • Skeletons in Animals Test

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    Biology Notes Questions and Answers

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    Germ Layers 
    A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and tissues. …

    Differences between Plant Growth and Animal Growth  Not rated yet
    Differences between Plant Growth and Animal Growth Plant Growth: 1. Growth continues throughout the life of the plant. 2. Here the growth …

    Homo erectus Test Not rated yet
    Once Homo erectus left Africa, where did the species begin to populate? (a)Asia (b)Europe (c)All of the above Answer

    Skeletons in Animals Test Not rated yet
    A worm has what kind of skeleton? (a)Endoskeleton (b)Exoskeleton (c)Hydrostatic skeleton Answer (c)Hydrostatic …

    Skeletons in Animals Not rated yet
    Movement is one of the essential features of living things. Cellular movement is observed in one-celled amoebas, ciliates, and flagellates. Myofibrils …

    Human Muscle Test Not rated yet
    Which of the following are ultramicroscopic filaments found in muscle cells? (a)Myofibrils (b)Myosin (c)Sarcomeres Answer

    Human Muscle Not rated yet
    Muscle is made up of thousands of muscle fibers, each composed of a single muscle cell. As shown in the Figure below a muscle cell contains a series of …

    Embryonic Stage Test Not rated yet
    Which structure of the early embryo forms the muscles and other internal organs? (a)Ectoderm (b)Endoderm (c)Mesoderm …

    Embryonic Stage Not rated yet
    At the age of four weeks, the embryo is about the size of a pea. A primitive heart is beating, the head is defined with rudimentary eyes and ears, and …

    Male Reproductive System Test Not rated yet
    Where does sperm production occur? (a)Epididymis (b)Seminiferous tubules (c)Urethra Answer (b)Seminiferous …

    Male Reproductive System Not rated yet
    The male reproductive organs are the testes (or testicles). The testes are two egg-shaped organs located in a pouch called the scrotum outside the body. …

    Fetal Development Test Not rated yet
    At what stage of development can the fetal heartbeat first be heard through the mother’s abdominal wall? (a)Fifth month (b)Fourth …

    Fetal Development Not rated yet
    During the third month, the fetus definitely resembles a human, but the head is relatively large. Painful uterine contractions During the ensuing months, …

    Birth Test Not rated yet
    Which of the following does NOT happen during the first stage of labor? (a)Breaking of amniotic sac (b)Cervix opens (c)Painful …

    Birth Not rated yet
    The birth process, which is complex, is regulated by various hormones. Fallopian tubes When diminished levels of progesterone remove the inhibition on …

    Fertilization and Development Test Not rated yet
    Where does fertilization take place? (a)Fallopian tubes (b)Uterus (c)Vagina Answer (a)Fallopian tubes

    Fertilization and Development Not rated yet
    For fertilization to occur, sperm cells must be released in the vagina during the period that the egg cell is alive. The sperm cells move through the …

    Female Reproductive System Test Not rated yet
    The opening at the lower end of the uterus is called the: (a)Cervix (b)Fallopian tube (c)Vagina Answer (a)Cervix …

    Female Reproductive System Not rated yet
    The organs of female reproduction include the ovaries, two oval organs lying within the pelvic cavity, and adjacent to them, two fallopian tubes. Also …

    Human Reproduction Not rated yet
    Reproduction is an essential process for the survival of a species. The functions of the reproductive systems are to produce reproductive cells, the gametes, …

    Populations Test Not rated yet
    What term describes a mutually beneficial relationship? (a)Commensalism (b)Mutualism (c)Symbiosis Answer (b)Mutualism …

    Populations Not rated yet
    Ecology is the discipline of biology that is concerned primarily with the interaction between and among organisms and their environments. All of the above …

    Biospheres and Biomes Test Not rated yet
    Of what is the biosphere composed? (a)living organisms (b)physical environment (c)All of the above Answer (c)All …

    Biosphere Not rated yet
    The biosphere is the blanket of living things that surrounds the substratum of Earth. The biosphere is composed of living organisms, as well as the physical …

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    Ecosystems Test Not rated yet
    What is at the bottom of every food chain? (a)Consumer (b)Plant (c)Producer Answer (c)Producer

    Ecosystems Not rated yet
    Interactions between communities and their abiotic physical environments form systems known as ecosystems. One of the major phenomena underlying an ecosystem …

    Communities Test Not rated yet
    In a predatory relationship, which participant does natural selection favor? (a)Both the predator and the prey (b)The most efficient …

    Communities Not rated yet
    Communities of plants, animals, and other organisms may be found in such places as a desert, a salt marsh, or a forest. A community is defined as multiple …

    Ecology Test Not rated yet
    Which of the following is a group of individuals belonging to one species? (a)Community (b)Ecosystem (c)Population Answer

    Human Senses Test Not rated yet
    What is special about the fovea of the eye? (a)It is the area of keenest vision. (b)It is the area of the eye where only black and …

    Human Senses Not rated yet
    The sense organs connect the nervous system to the external environment. They are the sources of stimuli that cause a response in the nervous system, …

    Human Peripheral Nervous System Test Not rated yet
    Which portion of the nervous system is responsible for returning the body to normal after an emergency has occurred? (a)Parasympathetic …

    Human Peripheral Nervous System Not rated yet
    The peripheral nervous system is a collection of nerves that connect the brain and spinal cord to other parts of the body and the external environment. …

    Human Central Nervous System Test Not rated yet
    What are the nerve roots of the central nervous system? (a)Sites of axons belonging to sensor and motor neurons (b)The coordinating …

    Human Central Nervous System Not rated yet
    The human nervous system can be conveniently subdivided into two divisions: the central nervous system (the brain and spinal cord) and the peripheral nervous …

    Animal Nerve Cells Test Not rated yet
    What type of neuron is responsible for carrying stimuli in the brain and spinal cord? (a)Interneurons (b)Motor neurons (c)Sensory …

    Animal Nerve Cells Not rated yet
    Nervous coordination enables an organism’s rapid response to an external or internal stimulus. adrenal gland Characteristic of animals only, nervous coordination …

    Human Endocrine System Test Not rated yet
    Which gland is responsible for the flight-or-fight response? (a)Adrenal gland (b)Parathyroid gland (c)Pituitary glanda …

    Human Endocrine System Not rated yet
    The human endocrine system modulates several processes of the body by the function of hormones. The endocrine system secretes hormones that control how …

    Hormones and Glands Not rated yet
    The animal body has two levels of coordination: nervous coordination and chemical coordination. Chemical coordination is centered in a system of glands …

    Human Excretory System Test Not rated yet
    What is the smallest functional component of the human excretory system? (a)bladder (b)kidney (c)nephron Answer

    Human Excretory System Not rated yet
    The human excretory system functions to remove waste from the human body. It involves the processing and removal of undigested food. This system consists …

    Excretory Systems Test Not rated yet
    Which of the following statements about the excretory system is FALSE? (a)It focuses on the removal of metabolic waste products from the …

    Excretory Systems Not rated yet
    The excretion process is concerned with the removal of waste products from the animal body. The relatively stable internal environment of the organism …

    Human Circulatory System Test Not rated yet
    Starting from the right atrium, which of the following is the correct pathway for blood flow through the human circulatory system? (a)Mitral …

    Human Circulatory System Not rated yet
    The human circulatory system functions to transport blood and oxygen from the lungs to the various tissues of the body. In woody dicot plants, new xylem …

    Circulatory Systems Test Not rated yet
    Which of the following statements describing the plant circulatory system is FALSE? (a)In woody dicot plants, new xylem forms on the outside …

    Circulatory Systems Not rated yet
    Single-celled organisms are in constant contact with their environments, obtaining nutrients and oxygen directly across the cell surface. The same holds …

    Mechanisms for Gas Exchange Test Not rated yet
    Which of the following does NOT play an important role in gas exchange? (a)Active transport (b)Diffusion (c)Moist membranes …

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    Mechanisms for Gas Exchange Not rated yet
    All living things obtain the energy they need by metabolizing energy-rich compounds, such as carbohydrates and fats. In the majority of organisms, this …

    Human Respiratory System Test Not rated yet
    Which of the following is the correct pathway through which air travels in the human respiratory system? (a)Nose, lungs, pharynx, trachea …

    Human Respiratory System Not rated yet
    The human respiratory system consists of a complex set of organs and tissues that capture oxygen from the environment and transport the oxygen into the …

    Nutrition in Animals Test Not rated yet
    Which of the following is the basic source of energy for all animals? (a)carbohydrates (b)protein (c)vitamins Answer

    Nutrition in Animals Not rated yet
    The nutritional requirements of most animals are relatively extensive and complex compared with the simple requirements of plants. The nutrients used …

    Human Digestive System Test Not rated yet
    What macromolecule starts to be digested by salivary amylase in the mouth? (a)Cellulose (b)Protein (c)Starch Answer

    Human Digestive System Not rated yet
    In the human digestive system, large organic masses are broken down into smaller particles that the body can use as fuel. This is a complex process. …

    Introduction to Nutrition and Digestion Not rated yet
    Nutrition refers to the activities by which living things obtain raw materials from the environment and transport them into their cells. The cells …

    Chordata Not rated yet
    The final phylum of animals is Chordata. All its members, called chordates, have bilateral symmetry, as well as a head, a body cavity, a digestive system, …

    Mammals Test Not rated yet
    Which category includes the egg-laying mammals? (a)Marsupials (b)Monotremes (c)Placental mammals Answers (b)Monotremes …

    Mammals Not rated yet
    Members of the class Mammalia have hair and nourish their young with milk produced by mammary glands. The presence of body hair or fur helps maintain …

    Birds Test Not rated yet
    Which of the following statements about feathers is FALSE? (a)They are adaptations of reptilian scales. (b)They do not aid in maintaining …

    Birds Not rated yet
    Though they are also classified as reptiles, birds belong to their own class, Aves. Birds have many structural adaptations for flight. For instance, …

    Reptiles Test Not rated yet
    The fossil record indicates that the earliest reptiles lived how long ago? (a)163 million years ago (b)175,000 years ago (c)310 …

    Amphibians Test Not rated yet
    What is significant about the discovery of the fossil called Tiktaalik? (a)It breathed with lungs. (b)It was a new kind of cartilaginous …

    Amphibians Not rated yet
    Amphibians are animals that live both on land and in water. The members of the class Amphibia are believed to have evolved from the lobe-finned fishes …

    Fishes Test Not rated yet
    What trait defines the class of fish called Agnatha? (a)Bony (b)Jawless (c)Lungs Answer (b)Jawless

    Fishes Not rated yet
    Fishes are aquatic animals with a streamlined shape and a functional tail that allow them to move rapidly through water. Fishes exchange gases with their …

    Animals Vertebrates Test Not rated yet
    How many living species of vertebrates are there? (a)120,000 (b)200,000 (c)60,000 Answer (c)60,000

    Vertebrates Not rated yet
    All members of the animal kingdom can be conveniently divided into invertebrates or vertebrates. Invertebrates are animals that lack a backbone, while …

    Chordata Test Not rated yet
    Which characteristic is NOT unique to chordates? (a)Body cavity (b)Notochord (c)Spinal chord Answer (a)Body …

    Echinodermata Not rated yet
    The phylum Echinodermata includes animals that have an internal skeleton and a water-based pressure system for locomotion. Members of this phylum include …

    Nematoda Test Not rated yet
    All of the following are characteristics shared by both flatworms and roundworms, EXCEPT: (a)Bilaterial symmetry (b)Cephalization …

    Nematoda Not rated yet
    Members of the phylum Nematoda are roundworms, and many are microscopic.(c)They are autotrophs. Roundworms have many of the same characteristics …

    Porifera Test Not rated yet
    Which of the following is NOT a characteristic of sponges? (a)Some live while attached to marine animals. (b)They are animals. …

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    Invertebrates Not rated yet
    Animals are multicellular, eukaryotic organisms. They are different from plants in that they take in food and digest it into smaller components. They …

    Arthropoda Test Not rated yet
    Which of the following apply to ALL arthropods? (a)external skeleton, segmented body, jointed appendages (b)hydrostatic skeleton, …

    Arthropoda Not rated yet
    The largest number of species in the animal kingdom belongs to the phylum Arthropoda. Members of this phylum, called arthropods, include such animals …

    Mollusca Test Not rated yet
    Which of the following statements regarding the mollusk circulatory system is FALSE? (a)They have a chambered heart. (b)They have …

    Mollusca Not rated yet
    Members of the phylum Mollusca are soft-bodied animals, such as the snail, clam, squid, oyster, and octopus. Generally, these animals live in water. Some …

    Annelida Test Not rated yet
    An annelide’s body cavity is: (a)Coelom (b)Nonexistent (c)Pseudocoelom Answer (a)Coelom

    Annelida Not rated yet
    Members of the phylum Annelida include several classes of segmented worms, among them the worms found in mud and sand, the familiar earthworms, and the …

    Platyhelminthes Test Not rated yet
    Which of the following is NOT a member of Platyhelminthes? (a)flatworm (b)leech (c)tapeworm Answer (b)leech …

    Platyhelminthes Not rated yet
    Members of the phylum Platyhelminthes are flatworms, such as the planarian. Grubs and tapeworms are other examples of flatworms. Flatworms display bilateral …

    Cnidaria Test Not rated yet
    What type of body symmetry do cnidarians exhibit? (a)Bilateral (b)Radial (c)None Answer (b)Radial

    Cnidaria Not rated yet
    Members of the phylum Cnidaria include hydras, jellyfish, sea corals, and sea anemones. Cnidarians live primarily in marine environments. They have tissue …

    Plant Hormones Test Not rated yet
    Which of the following plant hormones is responsible for the growth and elongation of the plant? (a)Abscisic acid (b)Auxin (c)Ethylene …

    Plant Hormones Not rated yet
    The growth and development of many plants are regulated by the activity of plant hormones. Hormones are biochemical substances produced in one part of …

    Water Movement Test Not rated yet
    Which of the following statements about water movement is FALSE? (a)The flow of water depends upon air pressure and humidity. (b)Water …

    Water Movement Not rated yet
    The movement of water from the roots to the leaves is a critical function in a plant’s life. The flow of water depends upon air pressure, humidity, adhesion, …

    Vascular Tissue Test Not rated yet
    Which of the following are the main conducting vessels of the xylem? (a)Companion cells (B)Sieve cells (C)Tracheids Answer

    Vascular Tissue Not rated yet
    The vascular tissues include xylem, which conducts water and minerals from the roots upward and throughout the plant, and phloem, which transports dissolved …

    Leaves Test Not rated yet
    What is significant about the spongy mesophyll layer in plant leaves? (a)It is only found in plants from arid regions. (b)It is …

    Leaves Not rated yet
    The leaves are the principal organs of photosynthesis in the vascular plants. The cuticle surrounds the epidermis of the leaf to reduce water loss, while …

    Stems Test Not rated yet
    What is the correct order of tissues within a stem? (a)Cortex, vascular tissue, pith, epidermis (b)Epidermis, pith, vascular tissue, …

    Stems Not rated yet
    The stems of vascular plants have several functions, including support of the plant, transport of water and minerals by the vascular system, and generation …

    Roots Test Not rated yet
    What is the correct order of tissues within a root? (a)Apical meristem, region of elongation, region of maturation, root cap (b)Region …

    Roots Not rated yet
    The primary functions of roots in plants are to anchor the plants to the ground and to take in water and minerals from the soil. Substances usually enter …

    Meristematic Tissue Test Not rated yet
    Which of the following statements is a quality of meristematic tissue? (a)It is covered by a thin, waxy layer. (b)It is the location …

    Meristematic Tissue Not rated yet
    Meristematic tissue is growth tissue and the location of most cell division. It is known as undifferentiated tissue because cells in the meristematic …

    Click here to write your own.

    Dermal Tissue Test Not rated yet
    Which of the following statements is a quality of dermal tissue? (a)It is covered by a thin, waxy layer. (b)It is the location of …

    Dermal Tissue Not rated yet
    Dermal tissue functions to protect the plant from injury and water loss. Dermal tissue covers the outside of the plant, except in woody shrubs and trees, …

    Grouned Tissue Test Not rated yet
    The ground tissue of vascular plants is responsible for which of the following?)(a)Protection (b)Storing carbohydrates (c)Transport …

    Ground Tissue Not rated yet
    The ground tissue of the vascular plant is responsible for storing the carbohydrates produced by the plant. Ground tissue comprises the majority of a young …

    Vascular Plants Not rated yet
    The plant world is conveniently separated into two major groups: nonvascular plants and vascular plants. The nonvascular plants include the bryophytes, …

    Vascular Plants Test Not rated yet
    Which of the following statements is TRUE? (a)In spring, phloem transports sugars from the newly emerging leaves, whereas xylem transports …

    Vascular Plants Described Not rated yet
    Ascular plants encompass several divisions of plants and are collectively known as tracheophytes. Tracheophytes are characterized primarily by …

    Nonvascular Plants Test Not rated yet
    Which of the following explains why bryophytes cannot retain water for long periods of time? (a)They have rhizoids instead of roots. (b)They …

    Nonvascular Plants Defined Not rated yet
    Nonvascular plants belong to the division Bryophyta, which includes mosses, liverworts, and hornworts. These plants have no vascular tissue, so the plants …

    Introduction to Plants Not rated yet
    Plants are multicellular eukaryotic organisms with the ability to produce their own food by the process of photosynthesis. (They are autotrophs.) Algae …

    Plants Diversity and Reproduction Test Not rated yet
    Which of the following is a correct description of plants? (a)Multicellular eukaryotic autotrophs (b)Multicellular prokaryotic heterotrophs …

    Zygomycetes Test Not rated yet
    What trait is a defining characteristic of Zygomycetes? (a)They are coenocytic. (b)They form zoospores. (c)They lack a known …

    Zygomycetes Not rated yet
    The Zygomycetes division of fungi includes mostly terrestrial fungi. Because the hyphae have no cross walls between the cells, they are said to be coenocytic. …

    Lichens Test Not rated yet
    Lichens are associations between fungi and cyanobacteria. This relationship is an example of which symbiotic relationship? (a)commensalism …

    Lichens Not rated yet
    Lichens are associations between fungi and cyanobacteria (formerly called blue-green algae). The cyanobacteria are the photosynthetic elements in the …

    Fungal Disease Test Not rated yet
    Which of the following is NOT a human disease caused by a fungus? (a)athlete’s foot (b)ringworm (c)ulcers Answers

    Fungal Disease Not rated yet
    Several fungi cause diseases in humans, some of them serious. For example, a disease of the lungs and spinal cord is caused by a fungus called Cryptococcus …

    Deuteromycetes Test Not rated yet
    Which of the following is NOT a characteristic of the Deuteromycetes fungi? (a)They form zoospores. (b)They include many human pathogens. …

    Deuteromycetes Not rated yet
    Deuteromycetes—also known as Deuteromycota, Deuteromycotina, fungi imperfecti, and mitosporic fungi—are fungi that are unable to produce sexual spores …

    Basidiomycetes Test Not rated yet
    Which of the following fungi is a member of Basidiomycetes? (a)Bread mold (b)The common mushroom (c)Yeasts Answer

    Basidiomycetes Not rated yet
    Members of the division Basidiomycetes are known as club fungi. The fungi that produces penicillin They include the common mushroom, the shelf fungi, puffballs, …

    Ascomycetes Test Not rated yet
    Which of the following fungi is a member of Ascomycetes? (a)The fungi that causes athlete’s foot (b)The fungi that produces penicillin …

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    Members of the division Ascomycetes are diverse. They range from unicellular yeasts to powdery mildews, cottony molds, and large, complex, “cup” fungi. …

    Fungi Test Not rated yet
    Most fungi are: (a)Autotrophs (b)Parasites (c)Saprobes Answer (c)Saprobes

    Fungi Defined Not rated yet
    Fungi, together with bacteria, are the major decomposers of organic matter on Earth. Most fungi are saprobes; that is, they digest nonliving organic matter, …

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    Slime Molds Test Not rated yet
    What trait qualifies a protist as a “true” slime mold? (a)Are usually independent cells that can unite (b)Is a single large cell …

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    Although slime molds have properties that resemble fungi, many scientists classify the organisms with the protists because of their protozoalike qualities. …

    Protozoa Test Not rated yet
    Which of the following applies to all members of kingdom Protista? (a)Eukaryotic (b)Heterotrophic (c)Motile Answer

    Protozoa Not rated yet
    Further analysis of kingdom Protista has suggested the need for restructuring phylogenic classification. Genetic and morphological research has led to …

    Oomycetes Test Not rated yet
    What is another term for oomycete? (a)bread mold (b)water mold (c)wood rot Answer (b)water mold

    Oomycetes Not rated yet
    Oomycetes are called water molds, a reference to the fact that most species are aquatic. They have chloroplasts filled with chlorophyll. They are not, …

    Algae Test Not rated yet
    Why are algae considered plantlike? (a)They have chloroplasts filled with chlorophyll. (b)They have roots. (c)They have …

    Algae Not rated yet
    The term algae refers to a large number of photosynthetic organisms that are multi- or unicellular eukaryotes and are not classified with plants. The …

    Domain Archaea Test Not rated yet
    Which of the following is a significant difference between the prokaryotes of domain Bacteria and domain Archaea? (a)presence or absence …

    Domain Archaea Not rated yet
    Characteristics of archaea Inhabitants of domain Archaea are more closely related to eukaryotic cells than they are to bacteria. Whereas both …

    Viruses Test Not rated yet
    Which of the following statements about viruses is FALSE? (a)They are obligate intracellular parasites. (b)They consist of nucleic …

    Viruses Not rated yet
    Technically, viruses are not members of any domain of life. They are considered here because, like b acteria, they are microscopic and can cause …

    Cyanobacteria Not rated yet
    Cyanobacteria are photosynthetic bacteria formerly known as blue-green algae. Most are found in the soil and in freshwater and saltwater environments. …

    Domain Bacteria Test Not rated yet
    Most bacterial species are: (a)Autotrophic (b)Chemosynthetic (c)Heterotrophic Answer (c)Heterotrophic

    Domain Bacteria Not rated yet
    Characteristics of bacteria Domain Bacteria includes the prokaryotes people encounter on an everyday basis. Most bacterial species are heterotrophic; …

    Prokaryotes and Virues Test Not rated yet
    Which of the following does NOT describe prokaryotic cells? (a)Their hereditary material is a single loop of double-stranded DNA. (b)They …

    Intro to Prokaryotes and Viruses Not rated yet
    Prokaryotes are microscopic organisms that include the domains Bacteria and Archaea. Prokaryotes lack a nucleus, and they have no organelles except ribosomes. …

    Domains and Kingdoms of Living Things Test Not rated yet
    Which kingdom is no longer valid? (a)Fungi (b)Monera (c)Protista Answer (b)Monera

    Kingdoms of Living Things Not rated yet
    In his classification scheme, Linnaeus recognized only two kingdoms of living things: Animalia and Plantae. At the time, microscopic organisms had not …

    Basics of Classification Taxonomy Test Not rated yet
    Taxonomy is best described as: (a)A method of scientifically naming species that once created, never changes (b)Classifying organisms …

    Basics of Classification (Taxonomy) Not rated yet
    Earth today is home to more than 8 million different species. This number is constantly changing, however, as new species are discovered at an outstanding …

    Homo habilis Test Not rated yet
    Members of the species Homo habilis were able to (a)Fashion protective clothing (b)Use tools and build shelters (c)All of …

    Homo Habilis Not rated yet
    Fossils dating back about 2 million years have been found with brain capacities much larger than any Australopithecus fossil. On the basis of brain size, …

    Australopithecus Test Not rated yet
    What were members of genus Australopithecus able to do that was a major step in human evolution? (a)Climb trees (b)Employ their …

    Australopithecus Not rated yet
    Fossils and fragments of jaws suggest to scientists that the ancestors of monkeys, apes, and humans began their evolution approximately 50 million years …

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    Homo sapiens Test Not rated yet
    The earliest fossils of Homo sapiens date back how far? (a)2 million years ago (b)20,000 years ago (c)200,000 years ago …

    Homo Sapiens Not rated yet
    The earliest fossils of Homo sapiens date to about 200,000 years ago. Homo sapiens means “intelligent human,” and modern humans are classified in this …

    Homo Erectus Not rated yet
    The first hominid to leave Africa for Europe and Asia was Homo erectus. Evidence suggests that Homo erectus replaced Homo habilis. Homo erectus was about …

    Human Evolution Test Not rated yet
    Ancestors of monkeys, apes, and humans lived how long ago? (a)100 million years ago (b)50 million years ago (c)70 million …

    Origin of Organic Molecules Test Not rated yet
    Fill in the blank: The universe came into existence _____________ ago. (a)15 billion years (b)150 million years (c)5 billion …

    Origin of Organic Molecules  Not rated yet
    Origin of Organic Molecules Scientists hypothesize that the universe came into existence about 15 billion years ago with a colossal explosion …

    Life on Land Life Test Not rated yet
    What best describes the era called the “Cambrian explosion”? (a)A vast array of multicellular organisms came into being and began to occupy …

    Life on Land Not rated yet
    For billions of years, the only life present on Earth existed in the nutrient-rich environments of the oceans, lakes, and rivers. About 600 million years …

    First Eukaryotes Test Not rated yet
    What is the endosymbiotic theory? (a)A possible explanation for the formation of the first eukaryotic cells (b)A possible explanation …

    First Eukaryotes Not rated yet
    The cyanobacteria and archae of primitive Earth are also referred to as prokaryotes (together with the eubacteria). Prokaryotes. Approximately 1.5 billion …

    Ancient Life Test Not rated yet
    How did the first forms of life most likely generate energy? (a)Aerobic respiration (b)Fermentation (c)Photosynthesis …

    Ancient Life Not rated yet
    Earth came into existence about 4.6 billion years ago, and about 3.8 billion years ago, the chemical composition of Earth’s surface began to change. Scientists …

    Origin of Cells Test Not rated yet
    Which of the following is the best hypothesis regarding origins of nucleic acids? (a)DNA and RNA formed simultaneously. (b)DNA formed …

    Origin of Cells Not rated yet
    The appearance of the first cells marked the origin of life on Earth. However, before cells could form, the organic molecules must have united with one …

    Theory of Evolution Test Not rated yet
    What is the CORRECT definition of evolution? (a)Changes in a population of organisms over a period of time (b)Changes in individual …

    Theory of Evolution Not rated yet
    In his book The Origin of Species, Darwin presented evidence for his “descent with modification” theory, which has come down to us as the theory of evolution, …

    Mechanisms of Evolution Test Not rated yet
    what level does evolution occur? (a)Cells (b)Individuals (c)Populations Answer (c)Populations

    Mechanisms of Evolution Not rated yet
    Populations evolve, but individual organisms do not. A population is an interbreeding group of individuals of one species in a given geographic area at …

    Evidence for Evolution Test Not rated yet
    Which of the following statements does paleontology NOT support? (a)Fewer kinds of organisms existed in past eras. (b)Modern organisms …

    Evidence for Evolution Not rated yet
    In his book, Darwin offered several pieces of evidence that supported evolution. He attempted to convince the scientific community of the validity of …

    History of the Theory of Evolution Not rated yet
    Evolution implies a change in one or more characteristics in a population of organisms over a period of time. The concept of evolution is as ancient as …

    Cell Cycle Test Not rated yet
    Which of the following cell cycle descriptions is CORRECT? (a)Chromosomes are replicated during the G1 phase. (b)Interphase is when …

    Human Genome Test Not rated yet
    Approximately how many genes does the human genome contain? (a)20,000 (b)40,000 (c)60,000 Answer (a)20,000 …

    Human Genome Not rated yet
    In 1990, researchers at Celera Genomics and at the National Human Genome Research Institute began an ambitious endeavor to sequence the entire human genome. …

    Transgenic Animals Test Not rated yet
    Which of the following includes a FALSE example of a transgenic animal? (a)Ice that produce human growth hormone and pigs that make human …

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    Transgenic Animals Not rated yet
    A transgenic animal is an animal in which one or more genes have been introduced into its nonreproductive cells. The first transgenic animal was produced …

    Tools of Biochemistry Test Not rated yet
    Which best describes the purpose of recombinant DNA technology? (a)Blocks protein production for a given gene (b)Creates an entirely …

    Tools of Biotechnology Not rated yet
    The basic process of recombinant DNA technology involves manipulating an organism’s DNA and thus altering the proteins being produced. During this synthesis, …

    Cloning and Stem Cells Test Not rated yet
    What does cloning refer to? (a)Making a genetic replica of an entire organism (b)Making a genetic replica of an individual cell …

    Cloning and Stem Cells Not rated yet
    Cloning refers to the ability to make a genetic replica of a cell (or even an entire organism, also called reproductive cloning). Interest in cloning …

    DNA and Agriculture Test Not rated yet
    Genetic manipulation of plants is: (a)Asier than with bacteria (b)Impossible (c)More difficult than with bacteria Answer

    DNA and Agriculture Not rated yet
    Although plants are more difficult to work with than bacteria, gene insertions can be made into single plant cells. Then the cells can be cultivated to …

    Searching for DNA Test Not rated yet
    Why is mitochondrial DNA special? (a)It is only found in women. (b)It never mutates. (c)It represents an unbroken line …

    Searching for DNA Not rated yet
    The ability to retrieve DNA from ancient materials and museum specimens has given archaeologists and anthropologists hope of a glimpse at ancient life. …

    DNA Fingerprinting Test Not rated yet
    Which of the following is NOT used in DNA fingerprinting? (a)Base sequence patterns that are unique to each individual (a)Conserved …

    DNA Fingerprinting Not rated yet
    The use of DNA probes and the development of retrieval techniques have made it possible to match DNA molecules to one another for identification purposes. …

    Gene Therapy Test Not rated yet
    Which best describes the process of gene therapy? [(a)Functional genes are inserted into the reproductive cells in order to fix ailments in the …

    Gene Therapy Not rated yet
    Gene therapy is a recombinant DNA process in which cells are taken from the patient, altered by adding genes, and replaced in the patient. The genes then …

    Diagnostic Testing Test Not rated yet
    What is the purpose of the polymerase chain reaction? (a)Gene amplification (b)Gene expression (c)Gene recombination …

    Diagnostic Testing Not rated yet
    Recombinant DNA and biotechnology have opened a new era of diagnostic testing and have made detecting many genetic diseases possible. The basic tool of …

    Pharmaceutical Products Test Not rated yet
    Which of the following statements about vaccines is FALSE (a)Some vaccines are produced by eliminating disease-inducing genes from a pathogen, …

    Pharmaceutical Products Not rated yet
    Gene defects in humans can lead to deficiencies in proteins such as insulin, human growth hormone, and Factor VIII that may result in problems (diabetes, …

    Recombinant DNA Not rated yet
    Biotechnology is a process that uses the scientific research on DNA for practical means. Biotechnology is synonymous with genetic engineering because …

    Gene Control Test Not rated yet
    What is the role of an operon in bacterial gene expression? (a)It directly links two genes together so their products are expressed simultaneously. …

    Gene Control Not rated yet
    The process of protein synthesis does not occur constantly in the cell. Rather, it occurs at intervals followed by periods of genetic “silence.” Thus, …

    DNA Structure Test Not rated yet
    One strand of DNA reads 5’-AAAGTTCCGTGACT-3’; the complementary strand would read: (a)3’-TTTCAAGGCACTGA-5’ (b)3’-UUUCAAGGCACUGA-5’ …

    DNA Structure Not rated yet
    As proposed by Watson and Crick, deoxyribonucleic acid (DNA) consists of two long nucleotide chains. The two nucleotide chains twist around one another …

    Protein Synthesis Test Not rated yet
    Which of the following is essential for protein synthesis? (a)20 amino acids and ribosomes (b)All of the above (c)DNA, tRNA, …

    Protein Synthesis Not rated yet
    During the 1950s and 1960s, it became apparent that DNA is essential in the synthesis of proteins. Among many functions, proteins can serve as enzymes …

    DNA Replication Test Not rated yet
    What is the function of the enzyme DNA polymerase? (a)Gluing together Okazaki fragments (b)Joining together nucleotides during replication …

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    DNA Replication Not rated yet
    Before a cell enters the process of mitosis, its DNA replicates itself. Equal copies of the DNA pass into the daughter cells at the end of mitosis. …

    DNA Defined Not rated yet
    During the 1950s, a tremendous explosion of biological research occurred, and the methods of gene expression were elucidated. The knowledge generated …

    Principles of Genetics Test Not rated yet
    If a brown-furred organism was heterozygous for the fur color gene, and black was the other color allele, which of the following is a TRUE statement?

    Principles of Genetics Not rated yet
    Mendel’s studies have provided scientists with the basis for mathematically predicting the probabilities of genotypes and phenotypes in the offspring of …

    Inheritance Patterns Test Not rated yet
    Which of the following definitions is FALSE? (a)Alleles are different forms of a gene. (b)Heterozygous refers to when two different …

    Inheritance Patterns Not rated yet
    Mendel was the first scientist to develop a method for predicting the outcome of inheritance patterns. He performed his work with pea plants, studying …

    Introduction to Genetics Not rated yet
    Genetics is the study of how genes bring about characteristics, or traits, in living things and how those characteristics are inherited. zygote Genes are …

    Meiosis in Humans Test Not rated yet
    The union of the egg and sperm cells leads to formation of all of the following EXCEPT: (a)diploid cell (b)haploid cell (c)zygote …

    Meiosis in Humans Not rated yet
    In humans, meiosis is the process by which sperm cells and egg cells are produced. In the male, meiosis takes place after puberty. Diploid cells within …

    Test Meiosis Not rated yet
    Meiosis does NOT include: (a)gamete formation (b)production of diploid cells (c)two cell division phases Answer

    Meiosis Not rated yet
    Most plant and animal cells are diploid. The term diploid is derived from the Greek diplos, meaning “double” or “two”; the term implies that the cells …

    Cell Nucleus Test Not rated yet
    Which of the following statements about the nucleus is FALSE? (a)Chromosomes are composed of chromatin, a mixture of DNA and histone proteins. …

    Cell Nucleus Not rated yet
    A distinguishing feature of a living thing is that it reproduces independent of other living things. This reproduction occurs at the cellular level. …

    Cell Cycle Not rated yet
    The cell cycle involves many repetitions of cellular growth and reproduction. With few exceptions (for example, red blood cells), all the cells of living …

    Fermentation Test Not rated yet
    What is the purpose of fermentation? (a)alternative method of freeing up NAD in order to keep glycolysis running (b)keep the Krebs …

    Fermentation Not rated yet
    Fermentation is an anaerobic process in which energy can be released from glucose even though oxygen is not available. Fermentation occurs in yeast …

    Chemiosmosis Test Not rated yet
    What is the source of energy that directly drives ATP production in chemiosmosis? (a)aoxidation of pyruvic acid into carbon dioxide molecules …

    Chemiosmosis Not rated yet
    The actual production of ATP in cellular respiration takes place through the process of chemiosmosis (see Chapter 4). . Chemiosmosis involves the pumping …

    Test On Electron Transport System Not rated yet
    What is the final electron acceptor in the electron transport system, and what is formed? (a)ADP; ATP (b)NAD; NADH (c)oxygen; …

    Electron Transport System Not rated yet
    The electron transport system occurs in the cristae of the mitochondria, where a series of cytochromes (enzymes) and coenzymes exist. These cytochromes …

    Test on Krebs Cycle Not rated yet
    The Krebs cycle occurs in the: (a)cytoplasm (b)matrix (c)stroma Answer (b)matrix

    Krebs Cycle Not rated yet
    Following glycolysis, the mechanism of cellular respiration involves another multi-step process —the Krebs cycle, which is also called the citric …

    Test on Glycolysis Not rated yet
    How many ATP molecules are produced through glycolysis? (a)Six molecules of ATP are created in the second half of glycolysis after two are …

    Glycolysis Not rated yet
    Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid (also called pyruvate). The glycolysis process …

    Introduction to Cellular Respiration Not rated yet
    Some organisms, such as plants, can trap the energy in sunlight through photosynthesis (see Chapter 5) and store it in the chemical bonds of carbohydrate …

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    The Process of Photosynthesis Test Not rated yet
    Which of the following is a TRUE statement regarding the energy-fixing reactions of photosynthesis? (a)Oxygen and hydrogen are combined …

    Process of Photosynthesis Not rated yet
    The process of photosynthesis is conveniently divided into two parts: the energy-fixing reaction (also called the light reaction) and the carbon-fixing

    Molecules Photosystems Test Not rated yet
    Photosystems are: (a)A series of enzymatic reactions that capture and fix carbon dioxide molecules (b)clusters of light-absorbing …

    Photosystems Not rated yet
    Pigment molecules organized into photosystems capture sunlight in the chloroplast. Photosystems are clusters of light-absorbing pigments with some …

    chroloplast Test Not rated yet
    Which of the following statements about the chloroplast is FALSE? (a)A stack of thylakoids is called a granum. (b)The light …

    Chloroplast Not rated yet
    The organelle in which photosynthesis occurs (in the leaves and green stems of plants, for example) is called the chloroplast. Chloroplasts are relatively …

    Photosynthesis Test Not rated yet
    Which of the following statements about photosynthesis is FALSE? (a)Carbon dioxide molecules are bound into carbohydrates during the second …

    Photosynthesis Defined Not rated yet
    A great variety of living things on Earth, including all green plants, synthesize their foods from simple molecules, such as carbon dioxide and water. …

    ATP Production Test Not rated yet
    ATP formation is best described by which of the following statements? (a)ATP is formed as the hydrogen concentration gradient drives electrons …

    ATP Production Not rated yet
    ATP is generated from ADP and phosphate ions by a complex set of processes occurring in the cell.(c)the third (terminal) phosphate These processes …

    Adenosine Triphosphate ATP Test Not rated yet
    Where is the majority of ATP’s energy stored? (a)he phosphate closest to the ribose molecule (b)the second (middle) phosphate …

    Adenosine Triphosphate (ATP) Not rated yet
    The chemical substance that serves as the currency of energy in a cell is adenosine triphosphate (ATP). particular enzyme can catalyze only one reaction. …

    Enzymes Test Not rated yet
    Which of the following statements is FALSE? (a) particular enzyme can catalyze only one reaction. (b)All catalysts are enzymes. …

    Enzymes Not rated yet
    The chemical reactions in all cells of living things operate in the presence of biological catalysts called enzymes. end up with less energy than …

    Chemical Reactions Test Not rated yet
    An endergonic reaction is one in which the products: (a)End up with less energy than the reactants (b)Have more energy than …

    Chemical Reactions Not rated yet
    Most chemical compounds do not combine with one another automatically, nor do chemical compounds break apart automatically. The great majority of the …

    The Laws of Thermodynamics Not rated yet
    Life can exist only where molecules and cells remain organized. All cells need energy to maintain organization. Physicists define energy as the ability …

    Prokaryote and Eukaryote Cells Test Not rated yet
    Who was the scientist to first observe (and name) cells? (a)Anton Van Leeuwenhoek (b)Matthias Schleiden (c)Robert Hooke …

    The Structure of Prokaryote and Eukaryote Cells Not rated yet
    During the 1950s, scientists developed the concept that all organisms may be classified as prokaryotes or eukaryotes. The cells of all prokaryotes …

    Movement through the Plasma Membrane Test Not rated yet
    What do active transport and facilitated diffusion have in common? (a)They both move substances up their concentration gradient. (b)They …

    Movement through the Plasma Membrane Not rated yet
    In order for the cell cytoplasm to communicate with the external environment, materials must be able to move through the plasma membrane. This movement …

    Cells Defined Not rated yet
    One of the basic tenets of biology is that all living things are composed of one or more cells. Some organisms consist of a single cell, while others …

    Elements and Atoms Test Not rated yet
    An element: (a)can change its properties, depending on the environment (b)cannot be chemically decomposed (c)is composed …

    Elements and Atoms Not rated yet
    For many centuries, biology was the study of the natural world. Biologists searched for unidentified plants and animals, classified them, and studied …

    Organic Compounds Test Not rated yet
    What are the four major categories of organic compounds? (a)acids, bases, nucleic acids, and polysaccharides (b)carbohydrates, …

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    Organic Compounds Not rated yet
    The chemical compounds of living things are known as organic compounds because of their association with organisms and because they are carbon-containing …

    Molecules Test Not rated yet
    A molecule: (a)Cannot consist of only one element (b)Consists of elements arranged in a specific arrangement and ratio (c)Has …

    Molecules Not rated yet
    Most of the compounds of interest to biologists are composed of units called molecules. A molecule is a precise arrangement of atoms held together …

    Acid and Bases Test Not rated yet
    Acids and Bases How does an acid differ from a base? a) An acid releases hydroxide (OH–) ions, whereas a base releases hydrogen …

    Acids and Bases Not rated yet
    Acids and Bases Acids are chemical compounds that release hydrogen ions (H+) when placed in water. For example, when hydrogen chloride …

    Scientific Method Test Not rated yet
    1. A student using the scientific method would proceed through the steps in which of the following orders? (a) Hypothesis, observation, …

    Scientific Method Not rated yet
    The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. …

    Characteristics of Living Things Not rated yet
    Characteristics of Living Things The Most important characteristics of living things are: movement, feeding, development, breathing, reproduction, …

    Characteristics of Living Things Test Not rated yet
    1. Which of the following is NOT a characteristic of life? - Evolution - Growth - Mobility Answer - Evolution _______________ …

    Introduction to Biology Not rated yet
    Biology is the study of living things. It encompasses the cellular basis of living things, the energy metabolism that underlies the activities of life, …

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