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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Аноним Аноним
  • 18-02-2017
external  is one of them
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