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 27 - Self-Quiz - Page 467: 13

Answer

b.

Work Step by Step

The thickening of shoots and roots is achieved by growth in the vascular cambium and the cork cambium. This provides older plants with secondary growth.
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