Biology (11th Edition)

by Raven, Peter; Johnson, George; Mason, Kenneth; Losos, Jonathan; Singer, Susan

Published by McGraw-Hill Education

ISBN 10: 1259188132

ISBN 13: 978-1-25918-813-8

Chapter 49 - The Circulatory System - Review Questions - Apply - Page 1039: 3

Answer

Work Step by Step

A. is wrong since channels eliminate complete mixing, and B. is wrong since there is always just one SA node. D. can be eliminated since there is only one aorta.

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