Question

list 4 function of heart ? why is double circulation necessary in the human body​

Answer 1

Answer:

Double circulation supports a strict separation of both oxygenated and deoxygenated blood. Therefore, this circulation ensures that the body always has a dedicated supply of oxygen and also, it improves body efficiency. This is also one of the reasons why mammals can maintain their body temperatures

What are the four main functions of the heart?

Pumping oxygenated blood to the other body parts.Pumping hormones and other vital substances to different parts of the body.Receiving deoxygenated blood and carrying metabolic waste products from the body and pumping it to the lungs for oxygenation.Maintaining blood pressure.

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Answer 2

Explanati..... good afternoon dear friend