Continuing Evolution

AP Biology· difficulty 2/5

Macroevolution refers to

  • A

    Large-scale evolutionary patterns above the species level (origins of major clades, mass extinctions, evolutionary trends)

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  • B

    Small-scale shifts in allele frequencies within a single population (microevolution driven by selection or drift)

  • C

    Short-term phenotypic plasticity in individuals responding to local environmental conditions during their lifetimes

  • D

    Random mutational changes at the gene level that occur within isolated breeding populations of one species

Explanation

Macroevolution operates over geological time, producing the diversity of life. Microevolution operates within populations.

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