Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 16, Darwin's Theory of Evolution - Standardized Test Prep - Page 479: 10



Work Step by Step

The woodpecker finch and the large ground finch are the result of natural selection. Factors in their environment caused each bird's beak to appear different from the other. The factor that caused the two species of finches to sport different shaped beaks is the availability of food. Each finch is adapted for eating a different type of food.
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