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.
Biology (11th Edition)
by Raven, Peter; Johnson, George; Mason, Kenneth; Losos, Jonathan; Singer, Susan
Published by
McGraw-Hill Education
ISBN 10:
1259188132
ISBN 13:
978-1-25918-813-8
Chapter 22 - The Origin of Species - Review Questions - Understand - Page 458: 1
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