Population Ecology

AP Biology· difficulty 2/5

time N

The J-shaped curve shown represents

  • A

    Negative growth (declining): dN/dt = -rN

  • B

    Logistic growth (limited): dN/dt = rN(K-N)/K

  • C

    Exponential growth (no limits): dN/dt = rN

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  • D

    Stable equilibrium (no change): dN/dt = 0

Explanation

Unrestricted growth — accelerating curve. Reality always brings in a carrying capacity at some point.

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