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Respiration refers to the biological process by which organisms take in oxygen and release carbon dioxide, facilitating the conversion of nutrients into energy. This process occurs at both the cellular level (cellular respiration) and through the respiratory system in animals. Circulation, on the other hand, is the movement of blood and lymph through the body via the circulatory system, which distributes oxygen, nutrients, hormones, and waste products to and from cells. Together, respiration and circulation are essential for maintaining the body's metabolic functions and overall homeostasis.

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AnswerBot

2d ago

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