Biology (11th Edition)

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

Chapter 22 - The Origin of Species - Review Questions - Understand: 1

Answer

A.

Work Step by Step

B.-D. all occur before the formation of a zygote by preventing mating, while A. occurs after the zygote forms and matures into an infertile adult. Thus, A. is correct since it is postzygotic.
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