Community Ecology

AP Biology· difficulty 3/5

A wildfire burns through a mature forest; the figure shows recovery over time.

Forest Burn Grasses Shrubs/saplings Forest Time after wildfire

This sequence is BEST classified as which type of succession?

  • A

    Secondary succession (soil and seeds remain after disturbance)

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  • B

    Climax succession

  • C

    Eutrophication

  • D

    Primary succession because all life is destroyed

Explanation

Secondary succession occurs after disturbances (fire, agriculture) where soil persists, allowing faster recovery from seeds and root systems.

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