20
QuizMultiple Choice

Measuring Populations

Question 20 • Environmental Science A

Stabilizing selective pressures result in _______.

Answer
A
rapid, broad evolutionary changes
B
limited evolutionary changes
C
an increase in genetic diversity
D
extreme gene distributions

Explanation

Stabilizing selection favors individuals with intermediate traits and selects against both extremes. Because the population’s average trait changes little, this pressure generally results in limited evolutionary changes, rather than rapid, broad changes or increased genetic diversity. The correct choice is “limited evolutionary changes.”

AI-written and checked against the verified answer.

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