Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 23 - The Digestive System - Review Questions - Critical Thinking and Clinical Application Questions - Page 904: 7

Answer

It is used to make way for any pathogens to enter and expose it to the body's defense mechanism so in result it can importantly create immunity.

Work Step by Step

It is used to make way for any pathogens to enter and expose it to the body's defense mechanism so in result it can importantly create immunity.
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