citrus13690
citrus13690 citrus13690
  • 10-10-2022
  • Biology
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1. Sketch and label the pluck.
2. What happens to the lungs when air is blown in?
3. Explain why there are rings of cartilage around the trachea.
4. Where does the air go when the lungs blow up?
5. When a small piece of lung is placed in water, it floats. Why?
6. Are lungs hollow?

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