Biology (11th Edition)

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

Chapter 25 - Evolution of Development - Review Questions - Understand: 10

Answer

D.

Work Step by Step

All of A.-C. give false versions of how bilateral symmetry evolved multiple times. It actually evolved convergently more than once sometimes through convergent changes in CYC and sometimes through changes in other genes.
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