Question

1. Organ used by fish for exchange of gases:
2. The holes on the surface of an insect's body:
3. It is formed due to anaerobic respiration in humans:
4. An organism that respires anaerobically:
5. The gas that turns lime water milky:
6. Tiny pores on the surface of leaves :
7. The air tubes of insects :​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

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