Which statement best describes the pattern of natural selection on beak size?
A. Deep beaks are favored in dry years, while shallow beaks are favored in wet years.
B. Selection favors birds with bigger beaks.
C. Selection favors birds with smaller beaks.
D. Shallow beaks are favored in large populations, while deep beaks are favored in small populations.
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Which statement best describes the pattern of natural selection on beak size?
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