Why energy is required for all the life processes performed by living organisms?
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These include nutrition, respiration, circulation, excretion and reproduction. Organisms obtain energy from food to perform these life processes which are essential for survival. ... Oxygen is necessary to break up food and produce energy from it. Different animals possess different organs for respiration
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All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used for cellular processes.
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