Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 42 - Self-Quiz - Page 760: 6

Answer

a. amnion

Work Step by Step

A fluid-filled sac called the amnion envelops the fetus, protecting it. The fetus floats in the liquid within the sac called the amniotic fluid. The amnion keeps the fetus at a comfortable temperature and keeps it safe from injury.
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