Biology 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07802-426-9
ISBN 13: 978-0-07802-426-9

Chapter 32 - Circulation and Cardiovascular Systems - Assess - Page 620: 6



Work Step by Step

Since amphibians have three chambers in their hearts, frogs have aortic blood that has a smaller concentration of oxygen than found in the pulmonary vein.
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