BIOLOGY (LOOSELEAF)-W/CONNECT
BIOLOGY (LOOSELEAF)-W/CONNECT
12th Edition
ISBN: 9781260692181
Author: Raven
Publisher: MCG
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Chapter 34, Problem 6U

Why was the evolution of the pulmonary veins important for amphibians?

a.     To move oxygen to and from the lungs

b.     To increase the metabolic rate

c.     For increased blood circulation to the brain

d.     None of the above

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