The medium ground finch is one of Darwin's finches that inhabits an island in the Galapagos. It has a small beak that it uses to eat small, soft seeds. In 1977, a drought eliminated all but the hard, large seeds. The birds who had larger beaks were able to find food and survive to reproduce while the birds who had small beaks could not find food and died. Within a few generations, the beak size of the medium ground finch increased by 10%. What type of selection is this? * O Disruptive O Stabilizing D Directional Sympatric

The medium ground finch is one of Darwin's finches that inhabits an island in the Galapagos. It has a small beak that it uses to eat small, soft seeds. In 1977, a drought eliminated all but the hard, large seeds. The birds who had larger beaks were able to find food and survive to reproduce while the birds who had small beaks could not find food and died. Within a few generations, the beak size of the medium ground finch increased by 10%. What type of selection is this? * O Disruptive O Stabilizing D Directional Sympatric

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter40: Population Ecology

Section: Chapter Questions

Problem 7SA

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