Question 1

Curare, a substance that blocks the acetylcholine receptors on skeletal muscle, will cause

Accepted Answer

A)   rapid muscle twitches.
B)   sustained muscle contraction (tetanus) .
C)   muscle relaxation.
D)   no effect in the absence of acetylcholinesterase.E) A) and D)
F) B) and C)

Question 2

The mating system in which females are more ornamented than males is

Accepted Answer

A)   monogamy.
B)   promiscuity.
C)   polygamy.
D)   polygyny.
E)   polyandry.F) A) and E)
G) C) and D)

Question 3

A mother goat can recognize its own kid by smell. What form of animal behavior is this?

Accepted Answer

A)   associative learning
B)   innate behavior
C)   imprinting
D)   altruistic behavior
E)   agonistic behaviorF) A) and B)
G) C) and D)

Question 4

A type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify through later experiences is called

Accepted Answer

A)   innate behavior.
B)   imprinting.
C)   spatial learning.
D)   associative learning.E) A) and D)
F) B) and D)

Question 5

During the contraction of a vertebrate skeletal muscle fiber, calcium ions

Accepted Answer

A)   break cross-bridges by acting as a cofactor in the hydrolysis of ATP.
B)   bind with troponin, changing its shape so that the myosin-binding sites on actin are exposed.
C)   transmit action potentials from the motor neuron to the muscle fiber.
D)   spread action potentials through the T tubules.E) A) and B)
F) None of the above

Question 6

Circannual rhythms in birds are influenced by

Accepted Answer

A)   periods of food availability.
B)   reproductive readiness.
C)   periods of daylight and darkness.
D)   magnetic fields.
E)   lunar cycles.F) A) and C)
G) B) and C)

Question 7

Displays of nocturnal mammals are usually

Accepted Answer

A)   visual and auditory.
B)   tactile and visual.
C)   olfactory and auditory.
D)   visual and olfactory.
E)   tactile and auditory.F) A) and B)
G) C) and E)

Question 8

During a field trip, an instructor touched a moth resting on a tree trunk. The moth raised its forewings to reveal large eyespots on its hind wings. The instructor asked why the moth lifted its wings. One student answered that sensory receptors had fired and triggered a neuronal reflex culminating in the contraction of certain muscles. A second student responded that the behavior might frighten predators. Which statement best describes these explanations?

Accepted Answer

A)   The first explanation is correct, but the second is incorrect.
B)   The first explanation refers to proximate causation, whereas the second refers to ultimate causation.
C)   The first explanation is testable as a scientific hypothesis, whereas the second is not.
D)   Both explanations are reasonable and simply represent a difference of opinion.E) A) and D)
F) B) and D)

Question 9

Ruminant animals such as cows regurgitate their food and chew it (the "cud")  seemingly nonstop all day long. What type of muscle fibers would you expect to find in their masticatory muscles?

Accepted Answer

A)   oxidative fast-twitch
B)   oxidative slow-twitch
C)   glycolytic fast-twitch
D)   smooth muscleE) B) and D)
F) B) and C)

Question 10

According to Hamilton's rule,

Accepted Answer

A)   natural selection does not favor altruistic behavior that causes the death of the altruist.
B)   natural selection favors altruistic acts when the resulting benefit to the recipient, corrected for relatedness, exceeds the cost to the altruist.
C)   natural selection is more likely to favor altruistic behavior that benefits an offspring than altruistic behavior that benefits a sibling.
D)   the effects of kin selection are larger than the effects of direct natural selection on individuals.E) None of the above
F) C) and D)

Question 11

Scientists have tried raising endangered whooping cranes in captivity by using sandhill cranes as foster parents. This strategy is no longer used because

Accepted Answer

A)   fostered whooping crane chicks did not develop the necessary cues for migration.
B)   the fostered whooping cranes' critical period was variable such that different chicks imprinted on different "mothers."
C)   sandhill crane parents rejected their fostered whooping crane chicks soon after incubation.
D)   none of the fostered whooping cranes formed a mating pair-bond with another whooping crane.
E)   sandhill crane parents did not properly incubate whooping crane eggs.F) D) and E)
G) All of the above

Question 12

Figure 39.1
-Myosin filaments without actin overlap are in which section of Figure 39.1?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) A) and D)
G) B) and D)

Question 13

What force(s)  must animals overcome in order to move?

Accepted Answer

A)   friction only
B)   gravity only
C)   inertia only
D)   friction and gravity only
E)   friction and inertia onlyF) B) and C)
G) A) and E)

Question 14

Male elephant seals routinely fight (sometimes to the death)  in order to mate with large groups of female elephant seals. What kind of mating behavior is this an example of?

Accepted Answer

A)   intersexual selection
B)   intrasexual selection
C)   polygandry
D)   monogamyE) A) and B)
F) A) and C)

Question 15

How do altruistic behaviors arise through natural selection?

Accepted Answer

A)   By its actions, the altruist increases the likelihood that some of its genes will be passed on to the next generation.
B)   The altruist is appreciated by other members of the population because their survivability has been enhanced by virtue of the altruist's risky behavior.
C)   Animals that perform altruistic acts are allowed by their population to breed more, thereby passing on their behavior genes to future generations.
D)   Altruistic behaviors lower stress in populations, which increases the survivability of all the members of the population.E) B) and D)
F) A) and D)

Question 16

What type of signal is fast and requires daylight with no obstructions?

Accepted Answer

A)   olfactory
B)   visual
C)   auditory
D)   tactileE) All of the above
F) A) and B)

Question 17

While on a field expedition in Ethiopia, you come across a group of baboons. After watching them for several days, you notice that one male baboon frequently mates with many different females. You also don't see any other males in the group. What type of mating system best describes these baboons?

Accepted Answer

A)   monogamy
B)   polygyny
C)   polyandry
D)   intrasexual selectionE) A) and B)
F) A) and C)

Question 18

A human baby performs a sucking behavior perfectly when it is put in the presence of the nipple of its mother's breast. What form of animal behavior is this?

Accepted Answer

A)   associative learning
B)   innate behavior
C)   imprinting
D)   altruistic behavior
E)   agonistic behaviorF) B) and D)
G) A) and B)

Question 19

Which of the following has a coefficient of relatedness of less than 0.5?

Accepted Answer

A)   a father to his daughter
B)   a mother to her son
C)   an uncle to his nephew
D)   a brother to his brother
E)   a sister to her brotherF) B) and C)
G) C) and E)

Question 20

The "motor unit" in vertebrate skeletal muscle refers to

Accepted Answer

A)   one actin binding site and its myosin partner.
B)   one sarcomere and all of its actin and myosin filaments.
C)   one myofibril and all of its sarcomeres.
D)   one motor neuron and all of the muscle fibers on which it has synapses.
E)   an entire muscle.F) C) and D)
G) A) and B)

Exam 39: Motor Mechanisms and Behavior

The mating system in which females are more ornamented than males is

Correct Answer
verified

What type of signal is fast and requires daylight with no obstructions?

Correct Answer
verified

A mother goat can recognize its own kid by smell. What form of animal behavior is this?

Correct Answer
verified

A human baby performs a sucking behavior perfectly when it is put in the presence of the nipple of its mother's breast. What form of animal behavior is this?

Correct Answer
verified

Circannual rhythms in birds are influenced by

Correct Answer
verified

Correct Answer
verified

A type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify through later experiences is called

Correct Answer
verified

Displays of nocturnal mammals are usually

Correct Answer
verified

During the contraction of a vertebrate skeletal muscle fiber, calcium ions

Correct Answer
verified

Ruminant animals such as cows regurgitate their food and chew it (the "cud") seemingly nonstop all day long. What type of muscle fibers would you expect to find in their masticatory muscles?

Correct Answer
verified

Which of the following has a coefficient of relatedness of less than 0.5?

Correct Answer
verified

Curare, a substance that blocks the acetylcholine receptors on skeletal muscle, will cause

Correct Answer
verified

According to Hamilton's rule,

Correct Answer
verified

How do altruistic behaviors arise through natural selection?

Correct Answer
verified

Figure 39.1 -Myosin filaments without actin overlap are in which section of Figure 39.1?

Correct Answer
verified

Male elephant seals routinely fight (sometimes to the death) in order to mate with large groups of female elephant seals. What kind of mating behavior is this an example of?

Correct Answer
verified

While on a field expedition in Ethiopia, you come across a group of baboons. After watching them for several days, you notice that one male baboon frequently mates with many different females. You also don't see any other males in the group. What type of mating system best describes these baboons?

Correct Answer
verified

Scientists have tried raising endangered whooping cranes in captivity by using sandhill cranes as foster parents. This strategy is no longer used because

Correct Answer
verified

The "motor unit" in vertebrate skeletal muscle refers to

Correct Answer
verified

What force(s) must animals overcome in order to move?

Correct Answer
verified

Exam 39: Motor Mechanisms and Behavior

The mating system in which females are more ornamented than males is

Correct AnswerverifiedShow Answer

What type of signal is fast and requires daylight with no obstructions?

Correct AnswerverifiedShow Answer

A mother goat can recognize its own kid by smell. What form of animal behavior is this?

Correct AnswerverifiedShow Answer

A human baby performs a sucking behavior perfectly when it is put in the presence of the nipple of its mother's breast. What form of animal behavior is this?

Correct AnswerverifiedShow Answer

Circannual rhythms in birds are influenced by

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify through later experiences is called

Correct AnswerverifiedShow Answer

Displays of nocturnal mammals are usually

Correct AnswerverifiedShow Answer

During the contraction of a vertebrate skeletal muscle fiber, calcium ions

Correct AnswerverifiedShow Answer

Ruminant animals such as cows regurgitate their food and chew it (the "cud") seemingly nonstop all day long. What type of muscle fibers would you expect to find in their masticatory muscles?

Correct AnswerverifiedShow Answer

Which of the following has a coefficient of relatedness of less than 0.5?

Correct AnswerverifiedShow Answer

Curare, a substance that blocks the acetylcholine receptors on skeletal muscle, will cause

Correct AnswerverifiedShow Answer

According to Hamilton's rule,

Correct AnswerverifiedShow Answer

How do altruistic behaviors arise through natural selection?

Correct AnswerverifiedShow Answer

Figure 39.1 -Myosin filaments without actin overlap are in which section of Figure 39.1?

Correct AnswerverifiedShow Answer

Male elephant seals routinely fight (sometimes to the death) in order to mate with large groups of female elephant seals. What kind of mating behavior is this an example of?

Correct AnswerverifiedShow Answer

While on a field expedition in Ethiopia, you come across a group of baboons. After watching them for several days, you notice that one male baboon frequently mates with many different females. You also don't see any other males in the group. What type of mating system best describes these baboons?

Correct AnswerverifiedShow Answer

Scientists have tried raising endangered whooping cranes in captivity by using sandhill cranes as foster parents. This strategy is no longer used because

Correct AnswerverifiedShow Answer

The "motor unit" in vertebrate skeletal muscle refers to

Correct AnswerverifiedShow Answer

What force(s) must animals overcome in order to move?

Correct AnswerverifiedShow Answer

Correct Answer
verified

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