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First Aid Contest III

Progress Indicator:
Question 1 of 30

1.  The Respiratory System consists of .  .  .

Choices:
  1. Trachea, lungs, mouth, nose, cilia
  2. Lungs, mouth, associated muscles, nose
  3. Nose, cilia, mouth, lungs, trachea
  4. Nose, mouth , trachea, lungs, associated muscles