B. Give one word for the following.
1. Air sacs inside the lungs
2. The muscular partition that separates thoracic
cavity and abdominal cavity
3. The gas which turns limewater milky
4. The temporary compound formed by
haemoglobin with oxygen
5. The structures that help in breathing
6. Substance broken down during respiration to
release energy
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Answer:
- Alveoli
- Diaphragm
- Carbon dioxide gas
- oxyhaemoglobin
- nose, pharynx, larynx, trachea, bronchi and lungs.
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