THE ANSWER IS C: oxygen, ATP
Living organisms undergo vital processes such as respiration , excretion, digestion, and reproduction to survive .
Respiration in Living Beings
Respiration is the breakdown of sugar molecules in the presence or absence of oxygen to yield ATP .
Repatriation is a series of reactions in aerobically respiring organisms, such as glycolysis , Kreb's cycle , and oxidative phosphorylation with electron transport chain.
In respiration , most living organisms use oxygen to make energy or ATP from glucose .
Thus, the living organisms who respire aerobically use oxygen to break down glucose and release ATP molecules .
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Most living things use oxygen to make ATP from glucose. Cellular respiration converts glucose into ATP and requires oxygen for maximum energy production. Thus, the correct answer is option c: oxygen, ATP.
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