Question

Give one word for the following sentences:

1. An allergy test which is done if the results of skin test unclear.
2. Tiny creatures present in dust, which are not visible to naked eyes.
3. Organ that converts ammonia into urea.
4. The process by which food releases energy.
5. Energy-rich chemical molecules released during respiration.​

Answer 1

Answer:

2.Microorganisms

3.Rhizobium

5.Oxygen

Explanation:

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