Biology (11th Edition)

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

Chapter 51 - The Immune System - Review Questions - Understand: 6

Answer

B.

Work Step by Step

A. is an overreaction to some environmental antigen, and C.and D. are also overreactions, not attacks on self.
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