Why are muscles an essential part of the circulatory system?

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Why are muscles an essential part of the circulatory system?

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RI SƠ 8 months 2021-07-13T05:37:05+00:00 1 Answers 4 views 0

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    2021-07-13T05:38:46+00:00

    The circulatory system carries oxygen, nutrients, and hormones to cells they remove waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should. 🙂

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