Question 1

Which statement about group living is false?

Accepted Answer

Solitary animals actually face a lower risk of disease transmission compared to group-living animals because close contact within groups facilitates the spread of pathogens.

Question 2

Which of the following explains eusociality in naked mole-rats?

Accepted Answer

Eusociality in naked mole-rats can be explained by the high costs of dispersal, as establishing new colonies is difficult and dangerous due to the lack of resources and predators. Therefore, staying and working together in a social structure provides benefits such as division of labor and predator defense.

Question 3

In rats, the hormone _______ masculinizes the nervous systems of genetic males and genetic females.

Accepted Answer

The answer of In rats, the hormone _______ masculinizes the...

Question 4

In diploid organisms, on average what percentage of alleles does a parent share with its offspring?

Accepted Answer

In diploid organisms, each parent contributes one allele for each gene to their offspring. Therefore, on average, a parent shares 50% of their alleles with their offspring. This assumes that the parent is not homozygous for any particular gene, in which case they would contribute the same allele to all of their offspring.

Question 5

Studying how urinary posture of the domestic dog changes from the juvenile period to adulthood would be classified as a question concerning _______ by Tinbergen (i.e., which of Tinbergen's four questions is being addressed?).

Accepted Answer

The answer of Studying how urinary posture of the domestic...

Question 6

In situations of imprinting, parent‒offspring recognition often develops during a brief window of time known as the _______.

Accepted Answer

The answer of In situations of imprinting, parent‒offspring recognition often...

Question 7

Ivan Pavlov and B.F.Skinner were practitioners of the field of animal behavior called _______.

Accepted Answer

The answer of Ivan Pavlov and B.F.Skinner were practitioners of...

Question 8

In diploid organisms, about what percentage of alleles do individuals share with the offspring of their siblings?

Accepted Answer

Individuals share about 50% of their alleles with their siblings, and since their offspring would inherit about half of these, the shared percentage with the offspring of their siblings would be about 25%.

Question 9

Karl von Frisch, Konrad Lorenz, and Niko Tinbergen were instrumental in starting a new field of study called _______ in which scientists studied a range of species, typically in the field, and focused on instinctive behaviors.

Accepted Answer

The answer of Karl von Frisch, Konrad Lorenz, and Niko...

Question 10

Which statement about female mammals is false?

Accepted Answer

Typically, female mammals do not benefit from seeking additional mates, as they have a greater investment in producing and raising offspring than males.

Question 11

In haplodiploid organisms, what percentage of alleles do females share with their sisters if their mother mated with only one male?

Accepted Answer

In haplodiploid systems, females are diploid, meaning they inherit one set of chromosomes from their mother and one from their father. Sisters share 100% of their father's alleles (since he is haploid) and on average 50% of their mother's alleles, leading to an overall genetic similarity of 75%.

Question 12

Of Tinbergen's four questions, those that concern function and _______ address the ultimate causes of a behavior.

Accepted Answer

The answer of Of Tinbergen's four questions, those that concern...

Question 13

The numbers below represent, for various species of mammals, the typical number of females a male has access to based on his outcompeting other males.In which species would you most expect to find males and females of similar body size?

Accepted Answer

In species where males have access to only one female (monogamous relationships), there is less sexual selection pressure for males to be significantly larger or stronger than females to compete for mates. Therefore, in Species A, where a male typically has access to only one female, you would most expect to find males and females of similar body size.

Question 14

Any object, condition, or event that is required to elicit a fixed action pattern is called a(n) _______.

Accepted Answer

The answer of Any object, condition, or event that is...

Question 15

The _______ gene controls the duration of the circadian rhythm in fruit flies.

Accepted Answer

The answer of The _______ gene controls the duration of...

Question 16

In a diploid organism, the fitness benefit that is accrued by rearing one's own offspring is _______ that accrued by rearing a sister's offspring.

Accepted Answer

In a diploid organism, the fitness benefit of rearing one's own offspring is twice that of rearing a sister's offspring due to the difference in genetic relatedness. An individual shares 50% of its genes with its offspring but only 25% with a niece or nephew (the offspring of a sister), making the genetic investment in one's own offspring twice as beneficial in terms of passing on one's genes.

Question 17

Ethologists used _______ experiments, in which animals were reared without opportunities to learn species-specific behaviors, to demonstrate genetic determination of a behavior.

Accepted Answer

The answer of Ethologists used _______ experiments, in which animals...

Question 18

Biologists can show the effect of a single gene on a behavior by performing _______ experiments.

Accepted Answer

The answer of Biologists can show the effect of a...

Question 19

In haplodiploid organisms, what percentage of alleles do females share with their female offspring?

Accepted Answer

In haplodiploid organisms, females inherit one set of chromosomes from their father and none from their mother. Therefore, they share 50% of their alleles with their female offspring, who also inherit one set of chromosomes from their father.

Question 20

Which statement about mating systems is false?

Accepted Answer

In species that mate on leks, males do not provide parental care. Leks are areas where males gather to display and attract females, but mating and parental care are not linked.

Quiz 52: Animal Behavior