Population Ecology

AP Biology· difficulty 2/5

Age (% of max lifespan) log(survivors) I II III

Which curve is most typical of large mammals such as humans and elephants?

  • A

    Type I (curve I)

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  • B

    Type III (curve III)

  • C

    All three apply equally

  • D

    Type II (curve II)

Explanation

Type I curves show high survival through early and middle life with mortality concentrated at old age, characteristic of large mammals with extensive parental care.

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