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: 9

Answer

B.

Work Step by Step

A complex contains many species which are closely related (B.). A. is wrong since it only considers morphology to define species, and C. can be excluded since the isolating mechanisms among these species prevent formation of many viable hybrids. D. is incorrect since reproductive isolation leads to genetic differences, contrary to what D. says.
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