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AppleGrabFace AppleGrabFace
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6 years ago
What happens to the rate of firing in motor neurons as we age?
 
  a. No changes occur.
 b. Firing rates decrease, leading to slower and weaker muscle responses.
 c. Firing rates increase, leading to uncomfortable cramping.
 d. Firing rates decrease, but muscle fibers are able to compensate for these changes.
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darthb10darthb10
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6 years ago
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AppleGrabFace Author
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6 years ago
Thanks
klyn
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Yesterday
Just got PERFECT on my quiz
patod1
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2 hours ago
this is exactly what I needed
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