Biology (11th Edition)

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

Chapter 45 - The Endocrine System - Review Questions - Understand: 5

Answer

D.

Work Step by Step

A. is wrong since it is not true for all endocrine organs, as is the case for B. C. refers to targets, not to the endocrine organs producing signals.
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