Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1259188132
ISBN 13: 978-1-25918-813-8

Chapter 35 - Deuterostomes - Review Questions - Understand - Page 730: 2

Answer

C.

Work Step by Step

The notochord (C.) is a supportive rod which is eventually replaced in vertebrates by the vertebral column. It is not surrounded by cartilage or bone, though it is made of the former.
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