Campbell Biology (12th Edition)

Published by Pearson
ISBN 10: 0135188741
ISBN 13: 978-0-13518-874-3

Chapter 37 - Test Your Understanding - Levels 3-4 - Applying/Analyzing - Page 821: 8

Answer

C.

Work Step by Step

The key in choosing the correct answer is to see that the yellowing of the leaves has to do with a lack of chlorophyll (C.). A. is wrong since plants do not get energy from the soil, and B, can be excluded since water penetration is not necessarily related to yellowing. D. is wrong since humus decomposition does not heat plants appreciably.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions
GradeSaver will pay $500 for your Textbook Answer contributions