Respiration is the process in which intake of oxygen and release of carbon dioxide occurs. The release of carbon dioxide occurs as a result of metabolic process taking place inside the cell. This is called cellular respiration . Humans inhale oxygen and it reaches to the lungs and in return carbon dioxide gets released outside.

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Chapter 7, Problem 4TYK

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Respiration is the process in which intake of oxygen and release of carbon dioxide occurs. The release of carbon dioxide occurs as a result of metabolic process taking place inside the cell. This is called cellular respiration. Humans inhale oxygen and it reaches to the lungs and in return carbon dioxide gets released outside.

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