Question

‘role of circulatory system in homeostasis

Answer 1

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Answer 2

Answer:

Explanation:

Single-celled organisms don’t need blood or a circulatory system to maintain homeostasis because they get nutrients from and excrete wastes directly into their environment. Humans, on the other hand, have trillions of cells and are much larger and more complex than paramecium or bacteria.

This requires a more sophisticated system to help maintain homeostasis. The four major parts of the circulatory system are the heart, blood vessels, blood, and lymphatic system.