Human Anatomy & Physiology (9th Edition)

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

Chapter 20 - The Lymphatic System and Lymphoid Organs and Tissues - Review Questions - Page 762: 6

Answer

B

Work Step by Step

Spleen and lymph nodes are the secondary lymphoid organs where germinal centers are present. These centers are the sites where mature B cells differentiate, proliferate and switch the class of their antibodies.
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