Carnivorous fish Gambusia introduced in water bodies for controlling a deadly disease feeds on larvae of

Options

A. Dragonfly
B. Anopheles
C. Nephantis
D. All the above.

Answer

To solve the question regarding the carnivorous fish Gambusia and its feeding habits, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Fish**: The question mentions the carnivorous fish Gambusia. This fish is commonly known as the mosquito fish.

2. **Understand the Purpose of Introduction**: Gambusia has been introduced into various water bodies primarily to control the population of mosquitoes, which are vectors for diseases like malaria.

3. **Know the Disease and Its Vector**: The deadly disease mentioned is malaria, which is caused by the Plasmodium parasite. The vector responsible for transmitting this parasite is the Anopheles mosquito.

4. **Feeding Habits of Gambusia**: Gambusia feeds on the larvae of mosquitoes, specifically targeting the Anopheles larvae. It can consume a significant amount of these larvae, up to its own weight in a single day.

5. **Evaluate the Options**: The options provided are:
- A) Dragonfly
- B) Anopheles
- C) Nephenthes
- D) All of the above

Since Gambusia primarily feeds on the larvae of Anopheles mosquitoes, the correct answer is option B) Anopheles.

6. **Conclusion**: Therefore, the carnivorous fish Gambusia introduced in water bodies for controlling malaria feeds on the larvae of Anopheles mosquitoes.

### Final Answer:
**B) Anopheles**

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