Multiple Choice
The respiratory advantage provided by a four-chambered heart over a three-chambered heart in vertebrates is
A) the combining of oxygen-rich blood with oxygen-poor blood.
B) a reduction in the amount of hemoglobin required.
C) decreased dependency on lungs.
D) separation of oxygen-rich blood and oxygen-poor blood.
E) a greater surface area for the diffusion of oxygen into the blood.
Correct Answer:
Verified
Correct Answer:
Verified
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