Multiple Choice
The purpose(s) of two circuits in a closed circulatory system is to ____.
A) collect and distribute blood within the heart
B) take blood to and from all parts of the body
C) take blood to and from the lungs
D) keep oxygenated and deoxygenated blood separate
E) allow oxygenated and deoxygenated blood to mix
Correct Answer:

Verified
Correct Answer:
Verified
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