Multiple Choice
What is the advantage of a closed circulatory system over an open one?
A) A closed system carries more blood.
B) A closed system moves blood more efficiently.
C) There are more blood cells in a closed system.
D) Blood flows more slowly in a closed system.
E) In a closed system, the blood comes nearer to each cell.
Correct Answer:

Verified
Correct Answer:
Verified
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