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seropon [69]
4 years ago
13

What is the main organ of the circulatory system?

Chemistry
2 answers:
Rainbow [258]4 years ago
7 0

Explanation:

your heart is the main organ of the circulatory system

steposvetlana [31]4 years ago
3 0
The heart are the main organ.
arteries, veins and capillaries are the one that travels blood around the body
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