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The process of acquiring oxygen from outside the body, and to use it in the process of break-down of food sources for cellular needs, is what we call respiration...
Respiration is the process of releasing energy from the breakdown of food. it is of two types :1. Aerobic respiration , 2. Anaerobic respiration.



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Respiration is the process by oxygen from outside is breathed in and carbon dioxide from inside is breathed. Inspiration is the breathing in of air with more of oxygen into the lungs. It is followed by the expulsion of air with more of carbon dioxide which is expiration. These two processes make up respiration. Mark as best

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