In Ascaris 3rd moulting takes place in

Options

A. Liver
B. Egg
C. Lung
D. Interstine

Answer

To answer the question regarding where the third molting of Ascaris takes place, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Ascaris**: Ascaris lumbricoides is a common parasitic worm that infects humans. It is known for causing ascariasis, which is an intestinal infection.

2. **Identify the Lifecycle Stages**: Ascaris undergoes several developmental stages, which include multiple molts. The lifecycle includes stages in both the environment and the host's body.

3. **Locate the First Moulting**: The first molting occurs when the larvae hatch from the eggs in the soil. This is the initial stage of development outside the host.

4. **Locate the Second Moulting**: After the larvae are ingested by a host (human), they migrate to the intestine where the second molting occurs.

5. **Locate the Third Moulting**: Following the second molting, the larvae migrate to the lungs. The third molting occurs in the lungs as they continue to develop.

6. **Conclusion**: Therefore, the third molting of Ascaris takes place in the lungs.

### Final Answer:
The correct answer is **lungs**.

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