In Ascaris, last moulting take place in

Options

A. Liver
B. Kidney
C. Heart
D. Intestine

Answer

**Step-by-Step Solution:**

1. **Understanding Molting**: Molting refers to the shedding of the outer layer or skin in certain organisms as they grow. In Ascaris, this process is crucial for its development from larva to adult.

2. **Life Cycle of Ascaris**: Ascaris begins its life cycle as eggs that are shed into the soil through the feces of infected hosts. These eggs hatch into larvae.

3. **First Molting**: The first molting occurs within the egg itself, where the larvae begin to develop. This is the initial stage of their growth.

4. **Subsequent Molting**: After the larvae hatch, they must be ingested by a host (usually a human). Inside the human body, particularly in the lungs, they undergo a second and third molting.

5. **Final Molting**: The last molting, which is the fourth one, occurs in the intestines of the host. This is where the larvae mature into adult Ascaris worms.

6. **Conclusion**: Therefore, the last molting of Ascaris takes place in the intestine, where they can cause the disease known as Ascariasis.

**Final Answer**: The last molting of Ascaris takes place in the intestine.

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