Explanation:
Aerobic respiration is more efficient than anaerobic respiration because the former produces a net of 34 ATPs while the latter produces a net of 2 ATPs in one cycle. Therefore with enough oxygen supply, most cells with both options opt will utilize aerobic respiration.
However, occasionally, the cell's energy demands are usually higher than the oxygen supply (such as during an athlete's short fast sprint), hence, in this case, the cells shift to anaerobic respiration to power the cell activities.
Anaerobic respiration evolved first because the first cells had to live in earth whose atmosphere was mainly carbon dioxide and methane. However after the Great Oxygenation event, organisms evolved to utilize oxygen in cellular respiration.
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