49. Animal Behavior

Male prairie voles are monogamous. They are attentive to young and aggressive toward intruders. This appears to be related to __________.

In some species, it is difficult to distinguish the sexes based on external characteristics. Which type of mating behavior is likely to occur in such species?

The enhanced reproduction, through apparently altruistic behavior, of related individuals with common alleles is referred to as __________.

One way to determine whether food preferences have a genetic basis is to __________.

A blackcap warbler from a captive migratory population is mated with another blackcap warbler from a captive nonmigratory population. The lab-reared offspring exhibit a modest amount of migratory restlessness. This behavior, which is intermediate between that of the two parents, could be interpreted as evidence for which of the following statements?

Ants carry dead ants out of an anthill and dump them on a "trash" pile. If a chemical from a dead ant is applied to a live ant, other ants will carry it, kicking and struggling, from the anthill, until the substance wears off. Which of the following explains this behavior?

Off in the distance, on the side of a mountain, you spot four female deer and a single male deer. If this reflects the mating system of this species, it would be an example of what type of mating system?