Population Ecology

AP Biology· difficulty 2/5

Males Females

The age-structure pyramid shown best predicts what for the population?

  • A

    Stable or declining population

  • B

    Negative growth in 50 years

  • C

    Rapid future growth (expanding population)

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  • D

    Equal growth and death rates

Explanation

A broad base with each younger cohort larger than the next indicates a high reproductive potential and predicts rapid expansion.

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