CAMPBELL BIOLOGY,VOL.II >CUSTOM<
CAMPBELL BIOLOGY,VOL.II >CUSTOM<
17th Edition
ISBN: 9781323803677
Author: Urry
Publisher: PEARSON
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Chapter 42.1, Problem 2CC

Three-chambered hearts with incomplete septa were once viewed as being less adapted to circulatory function than mammalian hearts. What advantage of such hearts did this viewpoint overlook?

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Amphibians have three-chambered hearts, which have some limitations when compared to the four-chambered hearts of birds and mammals. Describe a disadvantage of a three-chambered heart (in comparison to a four-chambered heart), and one way in which amphibians are able to compensate for it.
In the evolution of circulatory systems, how is a 4-chambered heart advantageous compared to a 3-chambered heart?
Three-chambered hearts with incomplete septa wereonce viewed as being less adapted to circulatory functionthan mammalian hearts. What advantage of such heartsdid this viewpoint overlook?

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CAMPBELL BIOLOGY,VOL.II >CUSTOM<

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