Which of the following was necessary for the evolution of beak size on Daphne Major?
A) Beak size had to be at least partially determined by the additive effects of alleles.
B) Characteristics of the available seeds had to change from year to year.
C) Individuals with smaller beaks had to grow larger beaks during drought years.
D) a and b
E) a, b, and c
Correct Answer:
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