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The system brings molecules to the cells. It includes blood vessels and the heart. respiratory system digestive system circulatory system nervous system

The system brings molecules to the cells. It includes blood vessels and the heart. respiratory system digestive system circulatory system nervous system
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The system brings molecules to the cells. It includes blood vessels and the heart.

respiratory system
digestive system
circulatory system
nervous system

User Thibault Clement
by
7.7k points

1 Answer

6 votes
i think it’s the circulatory system. it delivers oxygen and nutrients to the cells and pumps blood to the heart. hope this helps:)
User Gurgen Hakobyan
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8.1k points
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