Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 32 - 32.4 - Concept Check - Page 682: 1


The Cnidarians share a number of features with other animals which the sponges lack, making them clearly more closely related to the other animals than the sponges are. These features include: True tissues, embryos with germ layers, developmentally-defined symmetry, and Hox genes.

Work Step by Step

Skim p. 676 and make a list of differences between sponges and cnidarians, then skim the list to see which are shared by all animals other than sponges.
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