During the recovery period the body's need for oxygen is increased because

Question

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During exercise, the body uses up its energy reserves and oxygen stores. During the recovery period, the body needs to replenish these reserves, which requires additional oxygen. This is why we continue to breathe heavily even after we stop exercising. Choice A is not correct because during exercise, muscles might use anaerobic respiration, but during recovery, they switch back to using aerobic respiration which does require oxygen. Choice B is not entirely correct because while panting might occur during recovery, it is not the primary reason for the increased need for oxygen. Choice D is incorrect because the liver does not produce lactic acid, rather it processes it for disposal. Choice E is also incorrect because muscles must produce ATP for energy, and this requires oxygen.

During the Recovery Period the Body's Need for Oxygen Is