Answer :
Final answer:
The body primarily utilizes aerobic respiration for long, sustained exercise due to its efficiency in producing ATP from glucose and fatty acids.
Explanation:
Aerobic respiration is the type of respiration that the body primarily uses for long, sustained exercise. During prolonged physical activity, aerobic metabolism breaks down glucose and fatty acids in the presence of oxygen to produce ATP, providing a continuous and efficient energy source. This process yields significantly more ATP per glucose molecule compared to anaerobic metabolism, making it ideal for endurance activities like marathon running or distance skating.
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