niya6022 niya6022

25-09-2020
Physics

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Why are muscles an essential part of the circulatory system?

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sarahlaboy4 sarahlaboy4

25-09-2020

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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