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 18 - Self-Quiz - Page 302: 2

Answer

c.

Work Step by Step

Sister groups emerge from a node; therefore, a node is the point on the evolutionary tree where a single clade diverges into two or more sister groups. The node is the common ancestor that gave rise to the various sister groups.
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