Question 1

The phrase adrenaline rush refers to the action of the neurotransmitter:

Accepted Answer

A)   dopamine.
B)   serotonin.
C)   acetylcholine.
D)   epinephrine.E) A) and D)
F) A) and C)

Question 2

Axons:

Accepted Answer

A)   transmit nerve impulses to terminal buttons and vary in length.
B)   are always bundled with other axons to form nerves and are individually very short in length.
C)   vary in length depending on whether they send or receive information.
D)   are uniform in size throughout the body though capable of serving different functions.E) B) and C)
F) B) and D)

Question 3

The brain and the spinal cord make up the ________ nervous system.

Accepted Answer

A)   central
B)   peripheral
C)   primary
D)   autonomicE) B) and C)
F) A) and C)

Question 4

One mechanism of drugs is to alter the availability of neurotransmitters,thus affecting the functioning of neurons.Antagonistic drugs ________ the availability,whereas agonistic drugs ________ the availability.

Accepted Answer

A)   increase; decrease
B)   decrease; increase
C)   eliminate; block
D)   block; eliminateE) A) and B)
F) None of the above

Question 5

James experienced a brain injury and now he can only say "tan." James's injury most likely occurred in:

Accepted Answer

A)   medulla oblongata.
B)   motor cortex.
C)   the brainstem.
D)   Broca's area.E) C) and D)
F) A) and D)

Question 6

The Smith children,although genetically related,all show slight variations in the color of their skin.These variations are most likely the result of:

Accepted Answer

A)   single genotype expression.
B)   cell division.
C)   polygenic effects.
D)   dominant gene effects.E) None of the above
F) A) and B)

Question 7

What are the branchlike appendages that detect chemical signals from other neurons?

Accepted Answer

A)   axons
B)   synapses
C)   cell bodies
D)   dendritesE) A) and D)
F) B) and D)

Question 8

According to the most recent estimate from the Human Genome Project,humans have approximately how many genes?

Accepted Answer

A)   1,000 -5,000
B)   20,000 -30,000
C)   over 100,000
D)   three times as many as most animalsE) A) and D)
F) None of the above

Question 9

You wish to conduct a long-term experiment to test the hypothesis that industrial melanism could theoretically cause changes to moth coloring.You create a large controlled environment that includes moths,their predators,and trees.You observe moth coloring over many generations before,and then after,you do what?

Accepted Answer

A)   Increase the number of predators
B)   Introduce new prey
C)   Darken the tree trunks
D)   Remove sunlightE) A) and D)
F) A) and C)

Question 10

Sherri has 23 chromosome pairs.How common is this in terms of human genotype?

Accepted Answer

A)   atypical
B)   typical
C)   atypical but not abnormal
D)   highly atypical and usually fatalE) A) and D)
F) B) and C)

Question 11

Thara's roommate has been complaining about having a "pinched nerve" from moving some furniture.What is she likely referring to as a nerve?

Accepted Answer

A)   a single axon from a portion of her back to her spinal cord
B)   a neuron that is part of her spinal cord
C)   a bundle of axons from some nerves in her back
D)   a neuron that connects to the pain center in her spineE) C) and D)
F) All of the above

Question 12

Which of the following is NOT a characteristic of the cerebral cortex?

Accepted Answer

A)   It has a wrinkled appearance.
B)   It is the largest part of the human brain.
C)   The corpus callosum provides connections between the two hemispheres.
D)   Damage to this area typically results in death.E) A) and C)
F) B) and C)

Question 13

Hemophilia is a genetic disorder in which the individual is unable to produce the blood-clotting factor.It is a sex-linked genetic mutation.If the mother carries the mutation on one of her X chromosomes but not the other,the chances of her son inheriting the mutated X,and thus developing the disease,would statistically be:

Accepted Answer

A)   100 percent.
B)   50 percent.
C)   25 percent.
D)   0 percent.E) B) and D)
F) B) and C)

Question 14

The advantage of studying monozygotic twins is that:

Accepted Answer

A)   all of their behaviors are identical.
B)   they are treated the same in their environment.
C)   they are easy to locate and track for research.
D)   they are genetically identical.E) None of the above
F) B) and D)

Question 15

Which of the following neurotransmitters would be most involved in enabling nerves that connect with muscles as you raise your arms above your head?

Accepted Answer

A)   acetylcholine
B)   epinephrine
C)   serotonin
D)   norepinephrineE) A) and D)
F) B) and D)

Question 16

Which of the following parts of a neuron integrates information from other neurons?

Accepted Answer

A)   axon
B)   synapse
C)   cell body
D)   dendriteE) C) and D)
F) All of the above

Question 17

The results of the Human Genome Project indicate that humans have approximately ________ as many genes as a fly or worm.

Accepted Answer

A)   twice
B)   four times
C)   five times
D)   six timesE) A) and B)
F) None of the above

Question 18

Neurons outside the brain and the spinal cord are part of the ________ nervous system.

Accepted Answer

A)   secondary
B)   peripheral
C)   central
D)   auxiliaryE) A) and D)
F) All of the above

Question 19

Anke is working in a laboratory and comes across a rat that is grossly overweight and seems unable to stop eating.The researcher tells Anke this rat has a brain lesion.Which part of the brain most likely has the lesion?

Accepted Answer

A)   amygdala
B)   hypothalamus
C)   frontal lobe
D)   brain stemE) A) and B)
F) A) and C)

Question 20

Growth hormone is released primarily through the actions of the ________ and is released from the ________.

Accepted Answer

A)   cerebral cortex; pineal gland
B)   hypothalamus; pineal gland
C)   cerebral cortex; pituitary gland
D)   hypothalamus; pituitary glandE) C) and D)
F) A) and C)

Exam 3: Biology and Behavior

Neurons outside the brain and the spinal cord are part of the ________ nervous system.

Correct Answer
verified

What are the branchlike appendages that detect chemical signals from other neurons?

Correct Answer
verified

Thara's roommate has been complaining about having a "pinched nerve" from moving some furniture.What is she likely referring to as a nerve?

Correct Answer
verified

The Smith children,although genetically related,all show slight variations in the color of their skin.These variations are most likely the result of:

Correct Answer
verified

Anke is working in a laboratory and comes across a rat that is grossly overweight and seems unable to stop eating.The researcher tells Anke this rat has a brain lesion.Which part of the brain most likely has the lesion?

Correct Answer
verified

The results of the Human Genome Project indicate that humans have approximately ________ as many genes as a fly or worm.

Correct Answer
verified

According to the most recent estimate from the Human Genome Project,humans have approximately how many genes?

Correct Answer
verified

The advantage of studying monozygotic twins is that:

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Growth hormone is released primarily through the actions of the and is released from the .

Correct Answer
verified

Sherri has 23 chromosome pairs.How common is this in terms of human genotype?

Correct Answer
verified

The phrase adrenaline rush refers to the action of the neurotransmitter:

Correct Answer
verified

James experienced a brain injury and now he can only say "tan." James's injury most likely occurred in:

Correct Answer
verified

The brain and the spinal cord make up the ________ nervous system.

Correct Answer
verified

Which of the following neurotransmitters would be most involved in enabling nerves that connect with muscles as you raise your arms above your head?

Correct Answer
verified

Which of the following parts of a neuron integrates information from other neurons?

Correct Answer
verified

Axons:

Correct Answer
verified

One mechanism of drugs is to alter the availability of neurotransmitters,thus affecting the functioning of neurons.Antagonistic drugs the availability,whereas agonistic drugs the availability.

Correct Answer
verified

Which of the following is NOT a characteristic of the cerebral cortex?

Correct Answer
verified

Exam 3: Biology and Behavior

Neurons outside the brain and the spinal cord are part of the ________ nervous system.

Correct AnswerverifiedShow Answer

What are the branchlike appendages that detect chemical signals from other neurons?

Correct AnswerverifiedShow Answer

Thara's roommate has been complaining about having a "pinched nerve" from moving some furniture.What is she likely referring to as a nerve?

Correct AnswerverifiedShow Answer

The Smith children,although genetically related,all show slight variations in the color of their skin.These variations are most likely the result of:

Correct AnswerverifiedShow Answer

Anke is working in a laboratory and comes across a rat that is grossly overweight and seems unable to stop eating.The researcher tells Anke this rat has a brain lesion.Which part of the brain most likely has the lesion?

Correct AnswerverifiedShow Answer

The results of the Human Genome Project indicate that humans have approximately ________ as many genes as a fly or worm.

Correct AnswerverifiedShow Answer

According to the most recent estimate from the Human Genome Project,humans have approximately how many genes?

Correct AnswerverifiedShow Answer

The advantage of studying monozygotic twins is that:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Growth hormone is released primarily through the actions of the ________ and is released from the ________.

Correct AnswerverifiedShow Answer

Sherri has 23 chromosome pairs.How common is this in terms of human genotype?

Correct AnswerverifiedShow Answer

The phrase adrenaline rush refers to the action of the neurotransmitter:

Correct AnswerverifiedShow Answer

James experienced a brain injury and now he can only say "tan." James's injury most likely occurred in:

Correct AnswerverifiedShow Answer

The brain and the spinal cord make up the ________ nervous system.

Correct AnswerverifiedShow Answer

Which of the following neurotransmitters would be most involved in enabling nerves that connect with muscles as you raise your arms above your head?

Correct AnswerverifiedShow Answer

Which of the following parts of a neuron integrates information from other neurons?

Correct AnswerverifiedShow Answer

Axons:

Correct AnswerverifiedShow Answer

One mechanism of drugs is to alter the availability of neurotransmitters,thus affecting the functioning of neurons.Antagonistic drugs ________ the availability,whereas agonistic drugs ________ the availability.

Correct AnswerverifiedShow Answer

Which of the following is NOT a characteristic of the cerebral cortex?

Correct AnswerverifiedShow Answer

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Correct Answer
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Correct Answer
verified

Growth hormone is released primarily through the actions of the and is released from the .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

One mechanism of drugs is to alter the availability of neurotransmitters,thus affecting the functioning of neurons.Antagonistic drugs the availability,whereas agonistic drugs the availability.

Correct Answer
verified

Correct Answer
verified