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 25 - Self-Quiz - Page 433: 12



Work Step by Step

Shark eggs develop within egg cases inside the body of the mother. When the time comes for the young to hatch, rupturing of the egg case releases the young into the water. Turtles are amniotes, meaning they produce eggs that protect the embryos by bathing them in a nourishing fluid; therefore, turtles can lay their eggs on land and do not need the protection of water. Only frogs, who are not amniotes, must lay their eggs directly into the water; if not, the eggs would dry out.
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