Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 46 - The Musculoskeletal System - Review Questions - Understand: 2

Answer

B.

Work Step by Step

A. is wrong since they have no bones, and C. is incorrect since they do not have vacuoles but instead have the hydrostatic pressure against the outside walls of their bodies. D. can be eliminated since the pressure is internal and not environmental.
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