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Saucettl7inap8er Saucettl7inap8er
  • 18-02-2017
  • Health
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What are four principle functions of the respiratory system?

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ats91413
ats91413 ats91413
  • 18-02-2017
  1. External respiration exchanges gases between bloodstream and lungs
    2. Internal respiration exchanges gases between bloodstream and body tissue.
    3. Air vibrating in vocal cords causes sound
    4. Olfaction.
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Anonymous Anonymous
  • 18-02-2017

external  is one of them

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