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

Answer

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.
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