Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 28, Animal Systems II - Assessment - Connecting Concepts - Use Science Graphics/Write About Science - Page 836: 35


This structure surrounds the embryo, protecting and cushioning it.

Work Step by Step

The egg featured is an amniotic egg. The structure labeled A is called the amnion. It is a sac filled with water.
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