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10 votes
How does the circulatory system work at the tissue level?

A) The heart pumps the blood.
B) Blood cells carry nutrients.
C) Cardiac muscle contracts.
D) Nutrients are delivered throughout the body.

2 Answers

9 votes
C - Cardiac muscle contracts . ^
User Qxotk
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The answer c
Have a good day:)
User Gretta
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