Answer
A.
Work Step by Step
B. - D. can all be found in fungi, plants, and some protists, and A. is a stage of development unique to animals with their digestive tracts.
Campbell Biology (11th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Published by
Pearson
ISBN 10:
0-13409-341-0
ISBN 13:
978-0-13409-341-3
Chapter 32 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 683: 1
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