Which animal would not survive, if there were no ponds of water?

Options

A. (a) Fasciola
B. (b) Ascaris
C. (c) Entamoeba
D. (d) Taenia

Answer

To determine which animal would not survive if there were no ponds of water, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Animals:**
- We have four options to consider: Fasciola (liver fluke), Ascaris (roundworm), Entamoeba, and Taenia (tapeworm).

2. **Analyze Fasciola (Liver Fluke):**
- Fasciola is known to infect sheep, cattle, and humans.
- Its life cycle involves a primary host (snails) that lives in water, where the larval development occurs.
- Therefore, Fasciola relies on water bodies for its life cycle and would not survive without ponds of water.

3. **Analyze Ascaris (Roundworm):**
- Ascaris primarily affects humans and is transmitted through ingesting infected food.
- Its life cycle does not require water; it goes from soil to human and back to soil.
- Thus, Ascaris can survive without ponds of water.

4. **Analyze Entamoeba:**
- Entamoeba infects humans through food and water, causing amoebic dysentery.
- However, its life cycle can occur in humans without the need for water bodies for larval development.
- Therefore, Entamoeba can also survive without ponds of water.

5. **Analyze Taenia (Tapeworm):**
- Taenia is a flatworm that infects pigs and humans, causing Taeniasis.
- Its life cycle involves pigs and does not require water for larval development.
- Hence, Taenia can survive without ponds of water.

6. **Conclusion:**
- After analyzing all options, we conclude that **Fasciola** is the only animal that would not survive if there were no ponds of water, as it requires water for its larval development.

### Final Answer:
**Fasciola (liver fluke)** would not survive if there were no ponds of water.

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