Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 26, Animal Evolution and Diversity - Standardized Test Prep - Page 779: 2

Answer

D

Work Step by Step

Option A is incorrect. Flatworms are flattened, soft worms that do not have segmentation. Option B is incorrect. Roundworms are also unsegmented. Option C is incorrect. Cnidarians are not worms. This group of animals include jellyfish and sea anemones. Option D is correct. Annelids are segmented worms that include earthworms and leeches.
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