Biology (11th Edition)

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

Chapter 57 - Dynamics of Ecosystems - Review Questions - Understand: 3

Answer

B.

Work Step by Step

The other answer choices are all parts of the nitrogen cycle, just not the fixation step which is described in B.
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