Functioning of heart
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Explanation:
The four major functions of the cardiovascular system are:
To transport nutrients, gases and waste products around the body.
To protect the body from infection and blood loss.
To help the body maintain a constant body temperature ('thermoregulation')
To help maintain fluid balance within the body
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Answer:
The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
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