Why do populations grow more slowly as they approach their carrying capacity? Select one: a. Individuals voluntarily stop mating so that overcrowding does not occur. b. The incoming energy decreases in populations experiencing a high rate of increase. c. Density-dependent factors lead to fewer births and increased mortality. d. Density-independent factors lead to fewer births and increased mortality. e. Hormonal changes promote higher death rates in crowded populations.
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Step 1: Carrying capacity (K) is the maximum population size of a species that an environment can sustain indefinitely. Show more…
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One reason that human populations have sidestepped factors that usually control population growth is: a. The carrying capacity for humans has remained constant since humans first evolved. b. Agriculture and industrialization have increased the carrying capacity for our species. c. The population growth rate $(r)$ for the human population has always been small. d. The age structure of human populations has no impact on its population growth. e. Plagues have killed off large numbers of humans at certain times in the past.
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