Question 1

Which behavior is an example of agonistic behavior?

Accepted Answer

Agonistic behavior refers to aggressive or threatening behavior displayed by an animal to establish dominance or defend territory. Raising hackles, baring teeth, and standing tall are all threatening behaviors exhibited by a dog to defend its territory or establish dominance.

Question 2

Which statement about chimpanzee behavior is true?

Accepted Answer

Grooming behavior is crucial to maintaining relationships within chimpanzee groups. This behavior helps to reduce tension, build trust, and strengthen social bonds between individuals. Dominance hierarchies are also present in chimpanzee societies, but both males and females can be organized within them. Alpha males may assert their status in a variety of ways, not just by making tools for food extraction. Finally, chimpanzees, like other social primates, do exhibit reconciliation-type behaviors, where individuals may exhibit friendly gestures after a conflict to repair social bonds.

Question 3

Which situation could represent kin selection in action?

Accepted Answer

Kin selection refers to the evolutionary strategy that favors the reproductive success of an organism's relatives, even at a cost to the organism's own survival and reproduction. Helping your brother pay for his children's college tuition is an example of kin selection because it aids in the success of your genetic relatives (your nieces or nephews), potentially at a personal financial cost.

Question 4

An insectivorous bird has the choice of eating (1) meadow beetles, which are abundant and large but expose the bird to hawk predation, (2) under-a-rock beetles, which are large and fatty but hard to obtain, or (3) under-a-leaf beetles, which are easy to obtain but small. The bird has nestlings to feed. As an optimal forager, it will

Accepted Answer

The optimal strategy for the bird would be to eat all three kinds of beetles, balancing the energy spent and the risks incurred against the energy gained. By doing this, the bird can ensure that it and its nestlings receive a diverse diet of nutrients while also minimizing the risk of predator exposure. While under-a-leaf beetles may be easy to obtain, they are small and may not provide enough energy for the bird and its nestlings. Meadow beetles may be abundant, but they come with the risk of hawk predation. Under-a-rock beetles may be energy-rich but are hard to obtain. Eating all three kinds of beetles would allow the bird to maximize its energy intake while minimizing the risks it incurs.

Question 5

Organisms that are nocturnal are more likely to communicate using

Accepted Answer

Nocturnal organisms are active at night and rely on senses that work well in low light or darkness. Smell and sound are senses that can function in the dark, whereas sight is less effective. Touch and taste are also less useful at night compared to smell and sound. Therefore, smell and sound are the most likely senses for nocturnal organisms to use for communication.

Question 6

Which piece of information is communicated by courtship displays?

Accepted Answer

Courtship displays are behaviors that are used to communicate to members of the opposite sex that they are interested in mating. These displays typically involve a combination of visual, auditory, and olfactory cues that make it clear that the individuals are of the same species and of the opposite sex. This helps to ensure that potential mates are not wasted on individuals with whom the individual cannot reproduce.

Question 7

Which term broadly describes any kind of interaction between two or more animals?

Accepted Answer

Social behavior broadly refers to any kind of interaction between two or more animals, including communication, cooperation, aggression, and mating. Competition and dominance hierarchy are specific types of social behavior, while foraging behavior is a type of individual behavior.

Question 8

During the spring, male sage grouse gather in an open area and strut about, erecting their feathers in a fanlike display. They also make booming sounds using their inflated air sacs. The function of this dance is to

Accepted Answer

The dance, including the feather display and booming sounds, is used by male sage grouse to attract the attention of females during mating season.

Question 9

The sending of, reception of, and response to signals constitute animal

Accepted Answer

The sending of signals (such as vocalization, body language, or chemical signals), the reception of those signals by another individual, and the response to those signals all represent forms of communication between animals. This communication can serve a variety of purposes, including conveying information about food, mating opportunities, or potential threats.

Question 10

Which situation represents an example of territorial behavior?

Accepted Answer

Territorial behavior involves an animal or group of animals defending a specific area they consider their own, often against members of their own species. Gannets defending the area within the beak's reach of their nest is an example of territorial behavior, as they actively defend a specific, personal space against others.

Question 11

Pecking order in chickens is an example of

Accepted Answer

Pecking order in chickens is an example of dominance hierarchy, where individuals establish a social rank through competitive interactions. The most dominant individual gets priority access to resources, including food and mates, while lower-ranked individuals are subordinate and must wait their turn. This helps to maintain social order and reduce physical confrontation within the group.

Question 12

Agonistic behavior

Accepted Answer

Agonistic behavior is typically used to determine access to food, mates, or territories. This behavior often involves contests or fights between individuals to establish dominance and access to resources. It does not necessarily result in serious injury, nor is it rare among vertebrates. Agonistic behavior can also decrease the number of individuals who mate as dominant individuals may exclude others from mating opportunities.

Question 13

Based on von Frisch's work on honeybee communication, which type of information is communicated to other workers by a honeybee's "dance"?

Accepted Answer

Von Frisch's work showed that honeybees communicate the direction of the nectar source through their "dance." They do not communicate the distance from water, color of the flowers, or quality of the nectar through this method of communication.

Question 14

The need for intense parental care of offspring favors mating systems that are

Accepted Answer

Monogamous mating systems involve a male and a female engaging in a long-term partnership in order to care for their offspring together. This is beneficial when offspring require a lot of care and attention, such as in the case of mammals, birds, and some reptiles. With both parents working together to raise offspring, there is a greater chance of survival and success for the offspring. Therefore, intense parental care of offspring favors monogamous mating systems.

Question 15

The certainty of paternity is greatest in organisms that

Accepted Answer

When organisms mate and lay eggs at the same time, it ensures that the male's sperm fertilizes the eggs immediately, increasing the certainty of paternity.

Question 16

From a sociobiological perspective, altruism is a behavior that

Accepted Answer

Sociobiology suggests that altruism can have a genetic basis in the sense that it may enhance the altruist's fitness, such as by increasing the survival or reproductive success of relatives or group members. Therefore, altruistic behavior can be subject to natural selection and evolve over time. However, this does not mean that all altruism is genetically determined or always beneficial.

Question 17

Territories are typically used for activities such as

Accepted Answer

Territories are most commonly used for activities such as feeding, mating, and rearing young. This is because defending a particular area can provide a consistent source of food or a safe location for offspring to be raised without competition from other individuals. Migration and identification of kin are not necessarily linked to territorial behavior, while identifying and defending a territory is not typically necessary for simply feeding or identifying kin.

Question 18

Several primates have been taught to communicate with humans using sign language. This supports the view that animals other than humans can learn through the process of

Accepted Answer

Primates learning sign language to communicate with humans demonstrates their ability to understand, process, and use language, which is a cognitive ability. This goes beyond simple imitation or conditioning, showing advanced mental processes such as memory, problem-solving, and understanding.

Question 19

You lose track of your friend in a store and start looking for her. Which strategy represents the use of a search image?

Accepted Answer

Using a search image involves forming a mental image of what you are looking for and then scanning the environment for that particular feature. In this case, remembering the color of clothing your friend was wearing and using that as a search image would be the most effective strategy.

Question 20

Endocrine disruptors affect reproductive behavior by

Accepted Answer

Endocrine disruptors can mimic or block natural hormones, leading to an increase or decrease in hormone activity. This can affect reproductive behavior by altering hormone levels necessary for sexual behavior, mating rituals, and fertility.

Quiz 35: Behavioral Adaptations to the Environment