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    Exam 22: Circulation and Respiration
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    A Key Advantage of Having a Four-Chambered Heart Is ____
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A Key Advantage of Having a Four-Chambered Heart Is ____

Question 38

Question 38

Multiple Choice

A key advantage of having a four-chambered heart is ____.​


A) only oxygen-rich blood flows to tissues​
B) ​blood pressure in the separate circuits is not independently controlled
C) ​two separate circuits are possible
D) ​lungs are only possible with a four-chambered heart
E) ​blood oxygenates more quickly

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