Course Introduction
Biological Science II
Test Questions
Biological Science II builds upon foundational biological concepts to explore more advanced topics in the life sciences, including plant and animal physiology, developmental biology, evolution, and ecology. The course examines the structure and function of multicellular organisms, focusing on systems such as circulation, respiration, reproduction, and homeostasis. Through laboratory and classroom experiences, students gain a deeper understanding of how living systems interact with their environments and the processes that drive biodiversity and adaptation. Emphasis is placed on scientific inquiry, experimental design, and real-world applications of biological knowledge.
Recommended Textbook
Biology Concepts and Investigations 2nd Edition by Marille Hoefnagels
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Page 2
Chapter 1: What Is Life
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Sample Questions
Q1) Asexual reproduction differs from sexual reproduction in that:
A)Asexual reproduction produces genetically diverse offspring
B)Asexual reproduction uses DNA to code for traits in offspring
C)Asexual reproduction occurs only in bacteria
D)Asexual reproduction produces offspring that are virtually identical
E)Asexual reproduction does not occur in animals
Answer: D
Q2) Which of the following is not true about a hypothesis?
A)It can be proven to be true
B)It can be proven to be false
C)It is a tentative explanation
D)It is based on previous knowledge
E)It must be testable to be useful
Answer: A
Q3) The "Kingdom" is the most all-inclusive taxonomic category.
A)True
B)False
Answer: True
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3
Chapter 2: The Chemistry of Life
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Sample Questions
Q1) Which is not a lipid?
A)A triglyceride
B)A phospholipid
C)A wax
D)A sterol
E)A starch molecule
Answer: E
Q2) How did the scientists determine if an organic molecule was extraterrestrial?
A)By looking for a decrease in <sup>13</sup>C and <sup>15</sup>N in the meteorite
B)By measuring the amount of amino acids in the meteorite
C)By measuring the amount of nucleotides in the meteorite
D)By looking for an increase in <sup>13</sup>C and <sup>15</sup>N in the meteorite
E)By measuring the total amount of carbon and nitrogen in the meteorite
Answer: D
Q3) A substance in which other substances dissolve is called a solute.
A)True
B)False
Answer: False
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4
Chapter 3: The Dynamic Cell
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Sample Questions
Q1) Cells typically keep their surface to volume ratio low.If a cell was a cube and you doubled the height,width,and length of the cell,how much would the volume increase?
A)2-fold
B)8-fold
C)It would stay the same
D)9-fold
E)4-fold
Answer: B
Q2) Viruses should not be considered living organisms because they do not consist of one or more cells.
A)True
B)False
Answer: True
Q3) Endosymbiosis is a theory based on the resemblance of chloroplasts and ribosomes to bacteria.
A)True
B)False
Answer: False
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Chapter 4: The Energy of Life
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Sample Questions
Q1) The metabolic rate of individuals is influenced by:
A)Age
B)Weight
C)The amount of thyroxin produced by the thyroid
D)The amount of body fat
E)All are correct
Q2) Once ATP donates its phosphate to a coupled reaction it becomes ADP.The ADP:
A)Can be recharged in an exergonic reaction to form ATP
B)Is a waste product that must be broken down
C)Can be recharged in an equilibrium reaction to form ATP
D)Can be recharged in an oxidation reaction to form ATP
E)Can be recharged in an endergonic reaction to form ATP
Q3) If the environment surrounding a cell has a lower concentration of solute than the cell:
A)The environment is isotonic to the cell
B)The environment is hypertonic to the cell
C)The cell will not experience a net gain or loss of water
D)The environment is hypotonic to the cell
E)The cell will die
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Page 6
Chapter 5: Photosynthesis
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Sample Questions
Q1) When a plant becomes dried out:
A)stomata close, decreasing gas exchange.
B)stomata open, decreasing gas exchange.
C)stomata close, increasing gas exchange.
D)stomata open, increasing gas exchange.
Q2) What is a product of photosystem II?
A)NADPH
B)Water
C)Oxygen
D)ADP
E)Glucose
Q3) Blue light has ___ energy than red light and is ____ by a green leaf.
A)less, reflected
B)less, absorbed
C)more, reflected
D)more, absorbed
Q4) The rise of photosynthetic organisms increased the concentration of CO<sub>2</sub> in the atmosphere,raised global temperature and raised sea level.
A)True
B)False
Page 7
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Chapter 6: How Cells Release Energy
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Sample Questions
Q1) Another function of the Kreb's cycle other than to continue the breakdown of glucose is to:
A)Manufacture fats and amino acids
B)Manufacture fats
C)Manufacture amino acids and provide oxygen to cells
D)Manufacture amino acids
E)Provide oxygen to cells
Q2) Animals are:
A)Net O<sub>2</sub> producers and CO<sub>2</sub> consumers
B)Net O<sub>2</sub> and CO<sub>2</sub> producers
C)Net O<sub>2</sub> consumers and CO<sub>2</sub> producers
D)Net O<sub>2</sub> and CO<sub>2</sub> consumers
Q3) The Kreb's cycle occurs in the:
A)Lysosome
B)Nucleus
C)Cytoplasm
D)Mitochondria
E)Ribosome
Q4) Oxidative phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.
Page 8
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Chapter 7: Dna Structure and Gene Function
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Sample Questions
Q1) In eukaryotic cells gene expression may be controlled by not allowing mRNA to leave the nucleus.
A)True
B)False
Q2) A gene is any DNA sequence that is transcribed to any type of RNA.
A)True
B)False
Q3) FOXP2 functions by:
A)Regulating cell division
B)Regulating mRNA splicing
C)Regulating the transcription of other genes
D)Acting as a neurotransmitter between neurons in the ear and brain
E)Acting as a neurotransmitter between neurons and muscles in the jaw
Q4) What would be the first codon translated in the mRNA sequence 5'GGAAUGAAACAGGAACCC - 3'?
A)GGA
B)CCC
C)AUG
D)GAA
E)AAU
Page 9
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Chapter 8: Dna Replication, mitosis and the Cell Cycle
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Sample Questions
Q1) A human heart cell contains ___ chromosomes.
A)2
B)23
C)46
D)4
E)16
Q2) The scientist (scientists)that used x-ray diffraction to help reveal the structure of DNA is (are):
A)Watson and Crick
B)Hershey and Chase
C)Avery and Macleod
D)Chargaff
E)Wilkins and Franklin
Q3) What did the researchers conclude from figure 8.26b?
A)Cyclophosphamide delayed the growth of tumors but resistance developed
B)Endostatin shrunk tumors without development of resistance
C)Endostatin shrunk tumors but resistance developed
D)Cyclophosphamide delayed the growth of tumors without development of resistance
E)Tumors in untreated cells shrank in size
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Page 10
Chapter 9: Sexual Reproduction and Meiosis
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Sample Questions
Q1) In meiosis,DNA replicates during:
A)Prophase one
B)Prophase two
C)Interphase two
D)Interphase one
E)Both interphase two and interphase one are correct
Q2) Mitotic cell division creates identical copies by replicating a cell's DNA __________ and then dividing ____________.
A)Once, twice
B)Twice, once
C)Twice, twice
D)Once, once
E)None are correct
Q3) The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.
A)True
B)False
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Chapter 10: Patterns of Inheritance
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Sample Questions
Q1) When scientists inserted the Bt toxin gene into plant cells they created a _____.
A)New species
B)Clone
C)Stem cell
D)Transgenic plant
E)Monohybrid
Q2) If you cross two heterozygous Yy pea plants,what fraction of the offspring will be heterozygous?
A)25%
B)75%
C)50%
D)0%
E)100%
Q3) A male expresses an X-linked recessive disorder only if he inherits these alleles from both parents.
A)True
B)False
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Chapter 11: The Forces of Evolutionary Change
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Sample Questions
Q1) What hypothesis were the researchers testing?
A)That harvesting larger fish would increase the size of fish in future generations
B)That harvesting fish randomly would decrease the size of fish in future generations
C)That harvesting larger fish would decrease the size of fish in future generations
D)That harvesting fish randomly would increase the size of fish in future generations
E)That slot limits would decrease the size of fish in future generations
Q2) The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is:
A)Directional selection
B)Disruptive selection
C)Stabilizing selection
D)Artificial selection
E)Convergent selection
Q3) Artificial selection is responsible for many breeds of dogs and cats.
A)True
B)False
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13
Chapter 12: Evidence for Evolution
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Sample Questions
Q1) Each branch on a cladogram is a clade distinguished by characteristics that appear only in its members.
A)True
B)False
Q2) The hypothesis that birds are closely related to small dinosaurs called theropods began with the discovery of the fossilized skeleton of Archaeopteryx.
A)True
B)False
Q3) Skeletal organization relating to limbs used for movement in vertebrates would be an example of homologous structures.
A)True
B)False
Q4) The wing of a bat and a bird are examples of:
A)Analogous structures
B)Homologous structures
C)Vestigial structures
D)Homeotic structures
E)Heterologous structures
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Chapter 13: Speciation and Extinction
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Sample Questions
Q1) In Table 13.3,what can be concluded about the flower preferences of bumblebees?
A)They prefer pink flowers
B)They prefer red flowers
C)They prefer yellow-orange flowers
D)They prefer M. lewisii no matter what color the flowers are
E)They prefer M. cardinalis no matter what color the flowers are
Q2) Postzygotic isolation barriers prevent:
A)A hybrid embryo from developing into a fertile adult
B)Fertilization
C)Male gametes from joining with female gametes
D)All are correct
E)Formation of gametes by one of the parents
Q3) A single common ancestor evolving into the current 28 species of silversword plants found on the Hawaiian islands is an example of ____.
A)Gradualism
B)Punctuated equilibrium
C)Extinction
D)A prezygotic barrier to evolution
E)Adaptive radiation
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Page 15
Chapter 14: The Origin and History of Life
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Sample Questions
Q1) How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?
A)Membranes are used by cells to catalyze reactions
B)Membranes are used by cells to store genetic information
C)Membranes protect a cell from high temperatures and pressures in the environment
D)Membranes are used by cells to isolate their contents from the environment
E)Membranes protect a cell for gasses in the atmosphere
Q2) By comparing the sequences of human and chimpanzee DNA sequences,scientists may be able to answer which of the following questions?
A)Which genes control the ability to speak?
B)Which genes lead to the development of opposable thumbs?
C)Which genes give binocular vision?
D)Which genes lead to the development of large brains?
E)Which genes give good visual depth perception?
Q3) According to the evolutionary tree humans are descended from other groups of modern apes.
A)True
B)False
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Chapter 15: Viruses
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Sample Questions
Q1) Viruses:
A)Consist of only a single cell
B)Are smaller than cells
C)Consist of multiple cells
D)Contain a nucleus
E)Contain ribosomes
Q2) A reason or reasons given by scientists as to why viruses are not considered living organisms include:
A)Viruses do not contain genetic information
B)Viruses do not reproduce on their own
C)Viruses are all smaller than the smallest known cells
D)Viruses do not contain a nucleus
E)Viruses can be frozen and still survive
Q3) HIV:
A)Is a retrovirus
B)Infects most mammals
C)Can be killed with antibiotics
D)Causes liver cancer
E)Can be transmitted through the skin
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Chapter 16: Bacteria and Archaea
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Sample Questions
Q1) A type of horizontal gene transfer in prokaryotes in which a cell takes up naked DNA without cell to cell contact is:
A)Transformation
B)Conjugation
C)Replication
D)Transduction
E)Fixation
Q2) Prokaryotes lack which of the following?
A)A nucleus
B)RNA
C)DNA
D)A cell membrane
E)A cell wall
Q3) Autotrophs must acquire carbon from organic molecules produced from other organisms.
A)True
B)False
Q4) An organism to which oxygen is toxic is an obligate anaerobe.
A)True
B)False
Page 18
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Chapter 17: Protists
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Sample Questions
Q1) Diatoms are a type of algae,but with a hard silica shell.Which of the following structures would you expect to find directly underneath the silica shell?
A)A cell wall
B)A plasma membrane
C)A nucleus
D)A chloroplast
E)A mitochondria
Q2) If S.niagarae did evolve into S.yellowstonensis this would be an example of which of the following?
A)Directional selection
B)Stabilizing selection
C)Disruptive selection
D)Artificial selection
Q3) All protists are single-celled.
A)True
B)False
Q4) Protists can be heterotrophs.
A)True
B)False
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Chapter 18: Plants
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Sample Questions
Q1) The two classes that make up the angiosperms are:
A)Mosses and club mosses
B)Ginkgos and cycads
C)Monocotyledons and dicotyledons
D)Horsetails and ferns
E)Conifers and gnetophytes
Q2) The structure of the angiosperm that supplies nutrients to the germinating seedling is the:
A)Endosperm
B)Fruit
C)Seed coat
D)Spore coat
E)Pollen grain
Q3) The part of the plant that conducts water and dissolved minerals from the roots to the leaves is the:
A)Xylem
B)Stomata
C)Root
D)Phloem
E)Cuticle
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Chapter 19: Fungi
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Sample Questions
Q1) The main storage carbohydrate in fungi is:
A)Glycogen
B)Glucose
C)Starch
D)Cellulose
E)Chitin
Q2) Which part of an endophyte penetrates inside of a plant?
A)The hyphae
B)The fruiting body
C)The spore
D)The mycelium
E)The exoenzyme
Q3) Which of the following is a difference between how a frog and Chytridiomycetes obtain energy?
A)Frogs ingest their food, while Chytridiomycetes secrete digestive enzymes
B)Chytridiomycetes ingest their food, while frogs secrete digestive enzymes
C)Frogs are heterotrophs, while Chytridiomycetes are phototrophs
D)Chytridiomycetes are heterotrophs, while frogs are phototrophs
E)Frogs are autotrophs, while Chytridiomycetes are phototrophs
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Page 21
Chapter 20: Animals
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Sample Questions
Q1) Which of the following were the first vertebrates to appear on land?
A)Amphibians
B)Reptiles
C)Birds
D)Mammals
E)Fish
Q2) An animal that maintains their body temperature by using heat generated from their own metabolism is a(an):
A)Endotherm
B)Ectotherm
C)Thermophile
D)Mesophile
E)Amniote
Q3) Mammals that lay eggs are marsupials.
A)True
B)False
Q4) An internal membrane in chordates that protects the developing fetus is the notochord.
A)True
B)False
Page 22
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Chapter 21: Plant Form and Function
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Q1) The main phloem conducting cells are:
A)Tracheids
B)Companion cells
C)Sieve tube elements
D)Vessel elements
E)Stomata
Q2) What was the researchers' conclusion?
A)Any ants that occupy domata protect the trees from herbivores
B)Tramp ants eat the leaves of plants with domata
C)Tramp ants that occupy domata protect the trees from herbivores
D)Herbivores are more likely to eat the leaves of plants with domata
E)Nectar attracts herbivores and prevents them from eating the leaves
Q3) Stems may have specialized functions including which of the following?
A)Domatia
B)Domatia and tendrils
C)Tendrils
D)Rhizomes
E)Rhizomes and tendrils
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23
Chapter 22: Plant Nutrition and Transport
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Q1) If water were being pushed from below,air bubbles in the xylem stream would not pose a problem.However,the observation that air bubbles can interrupt xylem function provides important evidence supporting the _______ theory of water movement.
A)gravity-suction
B)active transport
C)pressure-flow
D)osmotic
E)cohesion-tension
Q2) Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of its energy generated by photosynthesis to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Why would the plant divert so much energy to Rhizobium?
A)Because Rhizobium produces NH<sub>4</sub>
B)Because Rhizobium produces N<sub>2</sub>
C)Because Rhizobium produces sugars
D)Because Rhizobium protects the plants from predators
E)Because Rhizobium protects the plants from parasites
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Page 24
Chapter 23: Reproduction and Development of Flowering Plants
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Sample Questions
Q1) The plant hormone that stimulates cell division in seeds and fruits is:
A)Cytokinin
B)Jasmonic acid
C)Auxin
D)Ethylene
E)Abscisic acid
Q2) The number of similar anatomical parts called whorls that make up a flower is:
A)One
B)Two
C)Three
D)Four
E)Five
Q3) A sweet substance used by many angiosperms to lure pollinators is:
A)Pollen
B)Honey
C)"Honey Dew"
D)Phloem sap
E)Nectar
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Chapter 24: Animal Tissues, organ Systems and Homeostasis
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Q1) The most common way that living organisms maintain homeostasis is by positive feedback mechanisms.
A)True
B)False
Q2) The only type of connective tissue in which fibroblasts do not secrete collagen is:
A)Bone
B)Blood
C)Cartilage
D)Adipose
E)Loose connective
Q3) The tissue type that functions in providing contractions that power movement is:
A)Epithelial
B)Connective
C)Muscle
D)Nervous
E)All are correct
Q4) Cancer is a disease of the cell cycle.
A)True
B)False
Page 26
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Chapter 25: The Nervous System
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Q1) Toxins produced by scorpions cause sodium ion channels to become stuck open.These toxins cause pain by:
A)Depolarizing motor neurons
B)Polarizing sensory neurons
C)Polarizing motor neurons
D)Polarizing interneurons
E)Depolarizing sensory neurons
Q2) In Figure 25.21 the researchers measured a clam's ability to burrow as an indicator of paralysis due to inhibition of a Na<sup>+</sup> transporter by saxitoxin.Which of the following would occur in sensitive clam cells that have been exposed to saxitoxin?
A)Na<sup>+</sup> ions would no longer be able to leave a neuron by facilitated diffusion
B)Na<sup>+</sup> ions would no longer be able to leave a neuron by active transport
C)Na<sup>+</sup> ions would no longer be able to enter a neuron by active transport
D)Na<sup>+</sup> ions would no longer be able to enter a neuron by facilitated diffusion
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Chapter 26: The Senses Content
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Q1) The brain determines loudness of a sound by the number of neurons that are firing and the rate at which they fire.
A)True
B)False
Q2) The fluid that cleanses and nourishes the cornea and lens of the eye is:
A)The vitreous humor
B)Tear fluid
C)The aqueous humor
D)Rhodopsin
E)Both A and C are correct
Q3) In humans taste buds are most highly concentrated on the inside surface of the lips of the mouth.
A)True
B)False
Q4) The part of the eye that detects color is the:
A)Cone cells
B)Rod cells
C)Cornea
D)Iris
E)Optic nerve
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Chapter 27: The Endocrine System
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Q1) Which of the following would be the primary target for ADH?
A)Pancreas
B)Mammary gland
C)Testes
D)Kidney
E)Ovaries
Q2) Insulin:
A)Is used to treat diabetes mellitus
B)Is produced by the pancreas
C)Is produced by Islets of Langerhans
D)Is produced by beta cells
E)All are correct
Q3) Fish gills perform which of the following?
A)Exchange gasses
B)Absorb calcium
C)Secrete hormones
D)Exchange gasses and secrete hormones
E)Exchange gasses and absorb calcium
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Chapter 28: The Musculoskeletal System
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Q1) The axial skeleton consists of the limbs and the bones that support them.
A)True
B)False
Q2) You are trying out for the USA World Cup soccer team.Everything is going well until you try to score a goal doing a bicycle kick and tear a connection between your quadriceps and femur.Now you will have to wait another four years.Which of the following could you have done to your leg?
A)Sprained a ligament
B)Strained a tendon
C)Strained a ligament
D)Sprained a tendon
Q3) The vertebrae in descending order from the skull are:
A)Cervical, thoracic, lumbar
B)Lumbar, thoracic, cervical
C)Cervical, lumbar, thoracic
D)Thoracic, lumbar, cervical
E)Lumbar, cervical, thoracic
Q4) Ligaments connect bone to bone.
A)True
B)False
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Chapter 29: The Circulatory System
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Q1) Each day the human heart sends a volume of blood equal to about _____________ through the body.
A)50000 liters
B)1000 liters
C)7000 liters
D)2000 liters
E)5000 liters
Q2) The cellular components of blood that destroy foreign substances are:
A)Erythrocytes
B)Chondrocytes
C)Platelets
D)Leukocytes
E)Osteocytes
Q3) The largest artery in the body is the:
A)Coronary artery
B)Superior vena cava
C)Aorta
D)Pulmonary artery
E)Carotid artery
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Page 31
Chapter 30: The Respiratory System
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Q1) The lower respiratory tract consists of:
A)The pharynx and lungs
B)The larynx and lungs
C)The larynx, trachea, and lungs
D)The trachea and lungs
E)The pharynx, trachea, and lungs
Q2) The cessation of breathing is termed:
A)Pneumonia
B)Apnea
C)Scleroderma
D)Asthma
E)Emphysema
Q3) Oxygen can be toxic to cells by producing free radicals.These free radicals then attack phospholipids,attaching hydroxyl (-OH)groups onto their fatty tails.What effect would this have on the phospholipid?
A)It would become more reduced
B)It would form covalent bonds with other phospholipids
C)It would move into the cytoplasm
D)It would become more polar
E)It would contain more energy
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Chapter 31: Digestion and Animal Nutrition
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Sample Questions
Q1) A person suffering from lactose intolerance cannot break down the disaccharide lactose.Where would lactose be found in a person with lactose intolerance,but not in a lactose tolerant person?
A)In the mouth
B)In the stomach
C)In the large intestine
D)In the small intestine
Q2) The main site of water and mineral absorption in the human digestive system is the: A)Stomach
B)Esophagus
C)Small intestine
D)Large intestine
E)Rectum
Q3) The semisolid mass of food and gastric juice in the human stomach is termed:
A)Feces
B)Chyme
C)Glottis
D)Cud
E)Mash
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Chapter 32: Regulation of Temperature and Body Fluids
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Sample Questions
Q1) Since small amounts of ammonia are very toxic,mammals convert ammonia to uric acid for concentration before excretion occurs.
A)True
B)False
Q2) Humans may conserve or generate heat in cold weather by:
A)Blood vessels near the surface of the skin constricting
B)Blood vessels near the surface of the skin dilating and shivering
C)Shivering
D)Blood vessels near the surface of the skin dilating
E)Blood vessels near the surface of the skin constricting and shivering
Q3) A diuretic is:
A)A substance that decreases the permeability of the tubules to water
B)A substance that increases the volume of blood
C)A substance that decreases the volume of water in the body
D)A substance that increases the volume of urine
E)A substance that increases the production of ADH
Q4) Plasma proteins,blood cells,and platelets are filtered out of the blood stream at the glomerulus.
A)True
B)False
Page 34
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Chapter 33: The Immune System
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Sample Questions
Q1) If you transfuse type AB blood into a patient with type A blood,the patient will raise antibodies against the B antigen on the donor's blood,but will not raise antibodies against the A antigen.Why not?
A)B and T cells that recognize the A antigen will have been removed by clonal deletion
B)Antibodies that recognize the A antigen will have been removed by the spleen
C)Antibodies that recognize the A antigen will have been removed by the bone marrow
D)Macrophages will not present the A antigen to T cells
E)Recombination of the gene for antibodies cannot produce self reactive clones
Q2) The innate chemical substance produced by basophils that causes blood vessels to dilate is:
A)Interleukin
B)Complement
C)Interferon
D)Epinephrine
E)Histamine
Q3) In an autoimmune disease,the immune system attacks the body's "self antigens."
A)True
B)False
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Chapter 34: Animal Reproduction and Development
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Sample Questions
Q1) When a female cuttlefish accepts a male's mating attempt,the two animals align head-to-head,and he inserts a sperm packet into a pouch near her mouth.This is an example of ____.
A)Sexual internal fertilization
B)Sexual external fertilization
C)Asexual internal fertilization
D)Asexual external fertilization
E)Hermaphroditic fertilization
Q2) What can be concluded from figure 34.25?
A)Female impersonators were successful in mating 50% of the time
B)Males who guard a female for 0-20 minutes had the most reproductive success
C)Males who guard a female for more than 40 minutes had the most reproductive success
D)There was no correlation between time spent guarding a female and reproductive success
E)Males who guard a female for 20-40 minutes had the most reproductive success
Q3) The menstrual cycle controls the timing of oocyte maturation in the ovaries.
A)True
B)False
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Chapter 35: Animal Behavior
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Sample Questions
Q1) The type of behavior that does not require learning or experience to be performed correctly is:
A)Innate behavior
B)Dominant behavior
C)Recessive behavior
D)Imprinting
E)Habituation
Q2) The behavior in which an animal mates for life,lives with its mate,helps care for the young and defends the family is:
A)Polygamy which is rare in mammals
B)Monogamy which is common in mammals
C)Monogamy which is rare in mammals
D)Polygamy which is common in mammals
Q3) Chemicals released into the environment by animals that usually influence behavior in other members of the same species are pheromones.
A)True
B)False
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Chapter 36: Populations
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Sample Questions
Q1) In the equation G = rN that is used to study populations,"r" represents:
A)The birth rate
B)The death rate
C)The number of individuals added per unit time
D)The number of individuals at the start of the time interval
E)The per capita rate of increase
Q2) The maximum number of individuals of a population that a habitat can support indefinitely is its carrying capacity.
A)True
B)False
Q3) Immigration is the migration out of a particular area.
A)True
B)False
Q4) The number of individuals of a species per unit area or volume of habitat is:
A)Carrying capacity
B)Population density
C)A community
D)Population distribution
E)Population dynamics
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Chapter 37: Communities and Ecosystems
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Sample Questions
Q1) Nitrogen fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants,and in exchange obtain food from the plants.Which reaction can these bacteria catalyze?
A)Nitrogen gas (N<sub>2</sub>) to nitrate (NO<sub>3</sub>)
B)Ammonia (NH<sub>3</sub>) to nitrate (NO<sub>3</sub>)
C)Nitrogen gas (N<sub>2</sub>) to ammonia (NH<sub>3</sub>)
D)Nitrate (NO<sub>3</sub>) to ammonia (NH<sub>3</sub>)
E)Nitrate (NO<sub>3</sub>) to nitrogen gas (N<sub>2</sub>)
Q2) Secondary consumers:
A)Are carnivores
B)Are herbivores
C)Are bacteria
D)Are fungi
E)All are correct
Q3) Lichens and mosses that can grow on and erode rock would be considered pioneer species.
A)True
B)False
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Chapter 38: The Biosphere
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Sample Questions
Q1) All deserts are characterized by being hot and dry.
A)True
B)False
Q2) An El Nino is periodic global climate shift in which a slack in the trade winds sends unusually ______ water from the western _______________ ocean eastward.
A)Cold, Arctic
B)Warm, Atlantic
C)Cold, Atlantic
D)Cold, Pacific
E)Warm, Pacific
Q3) The usual yearly rainfall for a biome to be classified a desert is:
A)15 to 20 inches per year
B)25 to 30 inches per year
C)Less than 8 inches per year
D)12 to 15 inches per year
E)8 to 12 inches per year
Q4) Nutrient-rich lakes are termed eutrophic.
A)True
B)False
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Chapter 39: Conserving Biodiversity
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Sample Questions
Q1) Biodiversity has declined by about ____________ percent since 1970.
A)70
B)30
C)50
D)10
E)5
Q2) The ozone layer is part of the:
A)Ionosphere
B)Stratosphere
C)Troposphere
D)Biosphere
E)Limnetic zone
Q3) Approximately _______________ of the world's moist tropical forests have been cleared.
A)One-eighth
B)One-fourth
C)One-half
D)One-third
E)None of the above are correct
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