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Nastasia [14]
3 years ago
11

4. The blood vessels, heart and the blood make up

Chemistry
2 answers:
Ratling [72]3 years ago
8 0

Answer:

D, the cardiovascular system

Explanation:

The Cardiovascular System is the system at which blood circulates through our body

andrew-mc [135]3 years ago
3 0
D): the cardiovascular system because the blood vessels, heart and blood make up that system
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