Biology 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078024269
ISBN 13: 978-0-07802-426-9

Chapter 33 - The Lymphatic and Immune Systems - Assess - Page 640: 16

Answer

IgA

Work Step by Step

IgA is the major class of antibody that is secreted in milk, tears and saliva.
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