what is respiration ?
koi jaan pechan wala onn h ??
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In physiology, respiration is the movement of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction-----'
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respiration is the movement of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction. ... In mammals, physiological respiration involves respiratory cycles of inhaled and exhaled breaths.
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