Mastering Biology Ch. 12 Practice Test

Which of the following is true of the role of predators in relation to their prey?

As the number of predators in an area increases, the population growth rate of the prey species will decline.

Which of the following statements regarding diffuse coevolution is true?

In diffuse coevolution, groups of species interact with other groups of species, leading to selection and coevolution

Which of the following statements regarding the nature of species interactions is true?

Species may experience, and be adapted to, biotic and abiotic variation across their geographic range.

Which of the following is a true statement?

The different biotic interactions local populations experience throughout a species' geographic range could function as mechanisms of adaptive radiation.

Which of the following are true regarding species' niches?

The realized niche is a subset of the fundamental niche based on biological interactions.

Which of the following statements is FALSE when considering two species of competitors living in an area?

When two competing species coexist, the value for K (carrying capacity) will increase relative to the number of individuals of each species.

The two major land use changes that are responsible for the majority of habitat loss for nonhuman species in terrestrial environments are ______.

agriculture and urbanization

The process in which two species undergo reciprocal evolutionary change is called _______.

coevolution

The hypervolume that defines the environmental conditions under which a species can survive and reproduce, the physiological niche, is called the _______.

fundamental niche

A lion's killing and eating a gazelle is an example of a relationship in which one organism feeds on another, typically killing the prey. This relationship is called _______.

predation