Answer
The node, or fork, represents the common ancestor that gave rise to both groups B and C.
Work Step by Step
The node, or fork, represents the common ancestor that gave rise to both groups B and C.
Biology 2010 Student Edition
by Miller, Kenneth R.; Levine, Joseph S.
Published by
Prentice Hall
ISBN 10:
9780133669510
ISBN 13:
978-0-13366-951-0
Chapter 18, Classification - Assessment - Connecting Concepts - Use Science Graphics/Write About Science - Page 534: 35
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