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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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duonghathuylinh duonghathuylinh
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6 years ago
When a motor neuron fires, all of the muscle fibers of its motor
 
  A) unit contract together.
  B) pool contract together.
  C) segment contract together.
  D) equivalence contract together.
  E) feedback contract together.
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FanouseFanouse
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6 years ago
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duonghathuylinh Author
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6 years ago
Smart ... Thanks!
bkrandy
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Yesterday
Thank you, thank you, thank you!
loki1345
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2 hours ago
Thanks
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