I'm a little confused on this one. I know aerobic and anaerobic metabolism are both involved in exercise, but I'm not sure which one is the primary source for long-term workouts. I'll have to review my notes to refresh my memory on the differences between the two.
Okay, let me walk through this step-by-step. For long-term exercise, the body needs a steady, sustainable source of energy. Anaerobic metabolism produces ATP quickly but can't be maintained for very long. Aerobic metabolism is slower but can keep going for much longer periods. I think that points to A as the right answer.
Hmm, I'm not totally sure about this one. I know aerobic metabolism is important for endurance, but I'm wondering if anaerobic plays a bigger role than I'm remembering. I'll have to think this through carefully.
Cordie
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