Biology (11th Edition)

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

Chapter 43 - The Nervous System - Review Questions - Apply: 5

Answer

A.

Work Step by Step

B. is wrong since it would require a larger area and more receptors, while D. comes after the nerve fires. C. is essentially the brain ignoring a repeated stimulus, not a kind of summation.
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