When an individual is fatigued the cause of the fatigue could be related to which of the following: (SELECT ALL THAT APPLY)   a.) An inability of the nervous system to continue to activate skeletal muscle to produce force due to fatigue in the nervous system b.) Hypoglycemia (low blood glucose levels) c.) Depletion of glycogen that was stored in skeletal muscle and the live d.) Disruption of enzymatic processes that slow the rate by which substrate (such as glucose) can be metabolized

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