Seudónimo Seudónimo
  • 04-11-2016
  • Health
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Explain how you use pairs of muscles to flex and extend you arm.

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venus4455661
venus4455661 venus4455661
  • 04-11-2016
When you flex your arm your biceps contract, and your triceps extend. And when you unflex your arm the triceps contract and you biceps extend. The muscles work together to allow you to move your body

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athel
athel athel
  • 06-11-2016
When you flex your arm your biceps contract, and your triceps extend. And when you unflex your arm the triceps contract and you biceps extend. The muscles work together to allow you to move your body
Answer Link

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