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Kitty [74]
3 years ago
6

After a long soccer practice, Jack felt his pulse increase. As he cooled down, his pulse began to slow. Since he'd been studying

the circulatory
system in science class, he knew why his pulse slowed.
What is the main structure of the circulatory system that makes the blood move through the body?
O
A. artery
O
•
B. lymph vessels
C. heart
D. lungs​
Biology
1 answer:
yarga [219]3 years ago
6 0

Answer:

heart

Explanation:

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