Question 1

Which of the following best describes the difference between proximate and ultimate causation in animal behavior?

Accepted Answer

Proximate causation explains how a behavior occurs, while ultimate causation explains why a behavior occurs in terms of evolutionary fitness.

Question 2

A male frigatebird inflates its red throat pouch to attract females, as shown in the first image. This display is an example of which type of animal communication?

Accepted Answer

Visual communication

Question 3

A fiddler crab, as shown in the second image, waves its enlarged claw to signal to other crabs. What is the most likely evolutionary advantage of this behavior?

Accepted Answer

It increases the crab's chances of attracting a mate and deterring rivals, thus improving reproductive success.

Question 4

Which of the following best describes a fixed action pattern?

Accepted Answer

A sequence of unlearned acts that is unchangeable and usually carried to completion once initiated.

Question 5

In the third image, a blue jay learns to avoid eating monarch butterflies after experiencing their foul taste. This is an example of:

Accepted Answer

Associative learning

Question 6

Which of the following is an example of social learning?

Accepted Answer

A young chimpanzee learns to use a stick to extract termites by watching its mother.

Question 7

Which statement about pheromones is correct?

Accepted Answer

Pheromones are chemical substances that trigger a social response in members of the same species, often at very low concentrations.

Question 8

A researcher observes that coastal garter snakes eat banana slugs, while inland snakes do not, even when both are raised in the same environment. What does this suggest about the feeding behavior?

Accepted Answer

The feeding behavior is genetically determined.

Question 9

Which of the following best explains the rapid change in migratory direction observed in blackcap warblers since the 1950s?

Accepted Answer

Genetic changes favored by natural selection due to new environmental conditions, such as the availability of winter bird feeders in Britain.

Question 10

Which of the following is an example of ultimate causation in animal behavior?

Accepted Answer

Explaining how a behavior increases an animal's reproductive success and survival.

Question 11

A minnow releases an alarm pheromone when injured, causing nearby minnows to exhibit a fright response. What type of communication is this?

Accepted Answer

Chemical communication

Question 12

Which of the following best describes the evolutionary significance of the foraging gene (for) in Drosophila larvae?

Accepted Answer

Different alleles of the foraging gene provide fitness advantages in different population densities, maintaining genetic diversity.

Question 13

Which of the following scenarios best illustrates convergent evolution in animal behavior?

Accepted Answer

Different kingfisher species independently evolve plunge-diving behavior in similar environments.

Question 14

A vervet monkey gives a specific alarm call when it sees a snake, as shown in the fourth image. What type of communication is this, and what is its likely function?

Accepted Answer

Auditory communication; it warns other monkeys of the presence of a predator.

Question 15

Which of the following is an example of an innate behavior?

Accepted Answer

A goose retrieving an egg outside its nest by rolling it back with its beak, even if the egg is replaced with a similar object.

Question 16

Which equation best represents the relationship between fitness ($$w$$), survival ($$s$$), and reproductive success ($$r) in a $$simplified model?

Accepted Answer

$$w = s 	imes r$$

Question 17

Which of the following best explains why both forR and forS alleles are maintained in natural populations of Drosophila?

Accepted Answer

Each allele provides a fitness advantage under different environmental conditions, leading to a balance of selective forces.

Question 18

Which of the following is NOT a common mode of animal communication?

Accepted Answer

Electrical communication

Question 19

Which of the following best describes the process of migration in animals?

Accepted Answer

A regular, long-distance change in location guided by environmental cues such as the sun, stars, or Earth's magnetic field.

Question 20

Which of the following is an example of tactile communication in animals?

Accepted Answer

A honeybee dances to communicate the location of food to other bees by touching them.

Animal Behavior: Mechanisms, Evolution, and Ecological Context

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