Effect of Density on Populations

AP Biology· difficulty 2/5

Disease, competition, and predation are examples of

  • A

    Density-independent factors that affect populations regardless of how crowded they become

  • B

    Stochastic environmental events that strike populations randomly without regard to density

  • C

    Abiotic stressors that act uniformly on every individual independent of population size

  • D

    Density-dependent factors that intensify as population density increases

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Explanation

Their effect strengthens as crowding increases — important regulators of population size near K.

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