litflowerr
litflowerr litflowerr
  • 07-04-2017
  • Biology
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What is the movement of air in and out of lungs called

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nothingcom
nothingcom nothingcom
  • 07-04-2017
Inhale and exhale because you inhale the oxygen and exhale the carbon dioxide
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Аноним Аноним
  • 07-04-2017
Inhaling and Exhaling
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