Which characteristic best fits Type I (slow oxidative) fi...

Which characteristic best fits Type I (slow oxidative) fibers compared with Type II (fast) fibers?

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AFewer mitochondria and more fatigue

More mitochondria, more myoglobin, and greater fatigue resistance

CHigher maximum shortening velocity and highest power output

DNo capillary supply

EThey contract only when the person is asleep

Explanation

Slow oxidative fibers are aerobic, rich in mitochondria/myoglobin/capillaries, and resist fatigue. Fast fibers generally produce higher power but fatigue faster.

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