Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 34 - 34.3 - Concept Check - Page 728: 1


Sharks and tuna share the same basic streamlined body plan, with locomotion driven by moving fins. They share other structures such as gills. They differ in some details, such as the mineralization of the tuna’s skeleton and the tiny rays which support the tuna’s delicate fins. Tuna also have a swim bladder and a bony operculum covering their gills.

Work Step by Step

Just scan through the text about both ray-finned fishes and the cartilaginous fishes, making a list of similarities and differences. Comparing images of these two kinds of fish may also help.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.