Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 21 - The Evidence for Evolution - Review Questions - Synthesize: 1

Answer

Evolution requires phenotypic variation, due to genetic differences, which leads to differential survival and contribution to the next generation.

Work Step by Step

This question is simply answered by summarizing the the points made in the first part of the chapter.
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