Biology (11th Edition)

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

Chapter 40 - Sensory Systems in Plants - Review Questions - Apply - Page 830: 3

Answer

B.

Work Step by Step

The Darwins found that disrupting sensation or signalling from the tip stopped bending (B.), not sensation below the tip (C.). A. was only found later by Went, and D. is wrong since it is blue light which carries the signal in this example.
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