Fatter Sociable Weaver Birds Spend More Time Foraging Where They

question 7

Multiple Choice

Fatter sociable weaver birds spend more time foraging where they are vulnerable to predation, are more attractive to predators, and are less likely to escape an attack. Conversely, thin birds risk starvation. Therefore, sociable weaver of an intermediate weight has a selective advantage. This is an example of ____ selection.

• A) frequent
• B) directional
• C) disruptive
• D) stabilizing
• E) mutational

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