Question

What is circulation??​

Answer 1

Answer:

movement to and fro or around something, especially that of fluid in a closed system.

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Answer 2

Explanation:

An act or instance of circulating, moving in a circle or circuit, or flowing. the continuous movement of blood through the heart and blood vessels, which is maintained chiefly by the action of the heart, and by which nutrients, oxygen, and internal secretions are carried to and wastes are carried from the body tissues.

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