AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Average beak size in flamingos is a favorable trait over thin or thick beaks. This is an example of
A
directional selection
B
stabilizing selection
C
disruptive selection
Explanation: 

Detailed explanation-1: -Birth weight is a classic example of a trait under strong stabilizing selection, where high and low birth weights are correlated with reduced survival in both males and females (22).

Detailed explanation-2: -Classic examples of traits that resulted from stabilizing selection include human birth weight, number of offspring, camouflage coat color, and cactus spine density.

Detailed explanation-3: -Examples of Stabilizing Selection The prevalence of an intermediate fur color in mice. Beak size in a bird population. Human skull size.

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