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End of Chapter Quiz
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1
Complexity in animal nervous systems evolved with an increase in
A)animal body size.
B)animal body nutritive requirements.
C)the amount of associative neurons that eventually formed the brain.
D)types of animal behaviors.
2
A nerve impulse is caused by a quick reversal of polarity in a nerve cell resulting from
A)the exchange of sodium and potassium ions.
B)the outflow of sodium ions.
C)the inflow of potassium ions.
D)the exchange of sodium and chloride ions.
3
Excitatory neurotransmitters initiate an action potential in a postsynaptic neuron by opening
A)sodium ion gates in the postsynaptic cell.
B)potassium ion gates in the postsynaptic cell.
C)chloride ion gates in the postsynaptic cell.
D)calcium ion gates in the postsynaptic cell.
4
The purpose of the hindbrain is to
A)coordinate olfactory information from the nose with the eyes.
B)process critical thought and learning.
C)coordinate optic information with the muscles.
D)coordinate sensory information from muscles and motor responses.
5
Involuntary body activities such as breathing are controlled by the
A)cerebrum.
B)cerebellum.
C)hypothalamus.
D)brain stem.
6
The purpose of the autonomic nervous system is to do all of the following except
A)stimulate glands.
B)relay messages to skeletal muscles.
C)relay messages to cardiac and smooth muscles.
D)regulate the body's homeostasis.
7
When arm muscles hurt after heavy exercise, the pain comes from
A)neurotransmitters.
B)interoreceptors.
C)associative neurons.
D)exteroreceptors.
8
Motion and orientation to gravity are sensed in the ear, specifically in the
A)pinnae.
B)ear bones (hammer, anvil, stirrup).
C)semicircular canals.
D)Eustachian tubes.
9
Which of the following statements is incorrect?
A)Vertebrates focus the eye by changing the shape of the lens.
B)The eyes of arthropods and vertebrates use the same light-capturing molecule.
C)The vertebrate eye adjusts the amount of light entering the eye by contracting the ciliary muscles.
D)Light changes cis-retinal into trans-retinal.
10
The lateral line system in fish detects
A)pressure waves.
B)light.
C)taste.
D)magnetism.





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