Answer
True
Work Step by Step
Echinoderms have endoskeletons that are made of calcium carbonate. Vertebrates have endoskeletons made of cartilage and bone (collagen). Both types of skeletons offer structural support and protection.
Biological Science (6th Edition)
by Freeman, Scott; Quillin, Kim; Allison, Lizabeth; Black, Michael; Taylor, Emily; Podgorski, Greg; Carmichael Jeff
Published by
Benjamin Cummings
ISBN 10:
0321976495
ISBN 13:
978-0-32197-649-9
Chapter 32 - Deuterostome Animals - Review - Page 680: 1
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