Biology (11th Edition)

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

Chapter 20 - Genes Within Populations - Review Questions - Understand: 7

Answer

D.

Work Step by Step

All of A.-C. are needed for natural selection to occur: heritable (C.) genetic variation (A.) leading to differential reproductive success (B.). Thus, D. is the best answer.
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