Plasmodium completes its life cycle in

Options

A. One host
B. Two hosts
C. multiple host
D. none of these

Answer

To answer the question "Plasmodium completes its life cycle in," we need to analyze the life cycle of Plasmodium, the parasite responsible for malaria.

### Step-by-Step Solution:

1. **Understanding Plasmodium**: Plasmodium is a genus of protozoan parasites. It is known to cause malaria in humans.

2. **Identifying Hosts**: The life cycle of Plasmodium involves two distinct hosts:
- **Primary Host (Definitive Host)**: This is the female Anopheles mosquito, where the sexual reproduction of Plasmodium occurs.
- **Secondary Host (Intermediate Host)**: This is the human, where the asexual reproduction of Plasmodium takes place.

3. **Life Cycle Stages**:
- In the mosquito, Plasmodium undergoes sexual reproduction, producing sporozoites.
- When a mosquito bites a human, these sporozoites enter the human bloodstream and migrate to the liver, where they reproduce asexually.
- After a certain period, the parasites re-enter the bloodstream and infect red blood cells, continuing their asexual reproduction cycle.

4. **Conclusion**: Since the life cycle of Plasmodium involves both the mosquito and the human, we conclude that Plasmodium completes its life cycle in **two hosts**.

### Final Answer:
Plasmodium completes its life cycle in **two hosts**.

---