Natural Selection

AP Biology· difficulty 2/5

Sexual selection often produces

  • A

    Sexual dimorphism — distinct male/female phenotypes (e.g., elaborate male displays)

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  • B

    Sexual reduction — diminished phenotypes in both sexes (e.g., loss of ornamentation across sexes)

  • C

    Sexual monomorphism — identical male/female phenotypes (e.g., uniform coloration in both sexes)

  • D

    Sexual conformity — convergent phenotypes between sexes (e.g., shared display behaviors)

Explanation

Female mate choice or male-male competition favors traits like showy plumage that may reduce survival but increase mating success (peacock tail).

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