AP Biologyeasymcq1 pt
Disruptive selection is most likely to
A.favor two extreme phenotypes and can precede speciation
B.favor the single intermediate phenotype
C.eliminate all variation
D.shift the whole distribution one way
Explanation
Core Concept
When intermediates fare poorly (e.g., seedcrackers with mid-sized beaks), the population splits toward both extremes — a potential first step toward two species.
Correct Answer
Afavor two extreme phenotypes and can precede speciation
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