Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 40 - 40.2 - Concept Check - Page 881: 3


Evidence could have been similarity in the body temperatures during sleep and the level of the hormone melatonin. These tests could have been done in different seasons and got close results between cyanobacteria and human beings.

Work Step by Step

pg. 877 and pg. 866 show what a circadian rhythm and the biological clock does to the body, and these characteristics could have been similar in cyanobacteria.
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.