Biological Science (6th Edition)

Published by Benjamin Cummings
ISBN 10: 0321976495
ISBN 13: 978-0-32197-649-9

Chapter 30 - An Introduction to Animals - Review - Page 633: 3

Answer

False

Work Step by Step

Scientists predict half of the animal phyla first appeared as part of the Cambrian explosion. Recent studies revealed that the diversifying of animal body plans occurred more gradually. Even so, asymmetrical, radial and bilateral body plans developed rapidly through the Cambrian, not after.
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