During a drought on the Galapagos islands,finches with larger beaks were able to crack the large tough seeds produced by plants that survived the dry conditions.This is an example of ________.
A)directional selection
B)stabilizing selection
C)disruptive selection
D)genetic drift
E)a founder effect

Question

Quizplus · Accepted Answer

The fact that finches with larger beaks had a higher survival rate during the drought indicates that natural selection was favoring individuals with this trait. Directional selection occurs when natural selection favors individuals at one extreme of a trait distribution, as was the case here with larger beaks.

During a Drought on the Galapagos Islands,finches with Larger Beaks