Question:

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All of the following are results of human population increases EXCEPT

a. intraspecific competition.

b. increases in lifespan.

c. limited resources.

d. environmental pollu

The carrying capacity is

a. the amount of parasites a host can harbor without dying.

b. the capacity for the population to double in size.

c. the highest population level which the environment can sustain over time.

d. a and c only.

The age structure diagram for rapidly growing populations

a. is in the form of a pyramid.

b. is characterized by a large percentage of the population in the postreproductive years.

c. has a very broad base showing a large number of young.

d. involves both a and c.

A relationship in which two species are dependent on each other for survival is

a. neutral interaction.

b. commensalism.

c. competitive exclusion.

d. mutualism.