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: 2



Work Step by Step

The biological species concept requires two species be unable to mate and produce fertile offspring (A.). A. is wrong because it involves individuals rather than a whole population and does not specify that they cannot mate (just that the don't mate), while B. is incorrect since reproductive isolation can be prezygotic or postzygotic--choice B. is too narrow. Since C. is correct, D. is incorrect.
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