BIOLOGY 12E CONNECT ACCESS CARD
BIOLOGY 12E CONNECT ACCESS CARD
12th Edition
ISBN: 9781264938513
Author: Raven
Publisher: MCG
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Chapter 48, Problem 3A

The difference between the amphibian and mammal hearts is that

a. in the amphibian heart, oxygenated and deoxygenated blood mix completely in the single ventricle.

b. in the amphibian heart, there are two SA nodes so that contractions occur simultaneously throughout the heart.

c. in the ventricle in the amphibian heart, internal channels reduce mixing of blood.

d. in the amphibian heart, only the left aorta pumps oxygen obtained by diffusion through the skin.

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