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 42 - Self-Quiz - Page 761: 8

Answer

d.

Work Step by Step

Sometime during the embryonic period, gastrulation ceases and the somites and tail form. The tail has already disappeared by the beginning of the fetal period. During this time, the legs start kicking and the arms begin waving.
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