Biology I chapter 4 Study Guide (clickers) Completion



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k-strategist

d.

r-strategist

____ 35. Young adult male chimpanzees look for mates outside their own population. The males then take the females back to their group. Which of the following occurs in females’ original population?



a.

immigration

c.

natality

b.

mortality

d.

emigration

____ 36. American bison, which are large grazing mammals, are most often found clumped in small groups. What might you infer about the spatial distribution of American bison?



a.

A clumped group attracts more prey.

b.

A clumped group provides better protection from predators.

c.

A clumped group can graze a larger area.

d.

A clumped group takes better advantage of water resources.

____ 37. Which of the following statements is correct?



a.

Disease is density-dependent because transmission occurs more easily when a population is large.

b.

Population size of predators increases when their prey is scarce.

c.

Competition for resources is density-independent when food is plentiful.

d.

A change in average temperature is a density-dependent factor because fewer organisms can acclimate to variations in temperature.

____ 38. A flowering plant has seeds that are carried by the wind. Infer the most likely dispersion pattern of the plants that grow from these seeds.



a.

random

c.

clumped groups

b.

spatial

d.

uniform






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