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 432: 4

Answer

a. jaws

Work Step by Step

Bony fishes have a bony skeleton whereas cartilaginous have a skeleton made of cartilage. Neither cartilaginous nor bony fishes have lungs or a four-chambered heart. Only bony fishes have swim bladders. Both these groups, on the other hand, do possess jaws and are considered jawed fishes.
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