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 - Apply: 1

Answer

A.

Work Step by Step

B. is wrong because very few things are 100% certain in biology, and C. can be excluded since a lack of complete infertility almost guarantees gene flow. D. is the opposite of the truth: completely infertile hybrids make speciation very likely.
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