Frog's tadpoles are

Options

A. ureotelic
B. uricotelic
C. aminotelic
D. ammonotelic

Answer

To determine the nature of excretion in frog tadpoles, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**:
- Frog tadpoles are the larval stage of frogs, which are amphibians.

2. **Understand the Habitat**:
- Tadpoles are aquatic during their early life stages. This is important as the environment influences the type of nitrogenous waste they excrete.

3. **Determine the Type of Nitrogenous Waste**:
- In aquatic organisms, the primary form of nitrogenous waste is usually ammonia due to the abundance of water, which helps in diluting the toxic ammonia.

4. **Identify the Excretory Product**:
- However, as tadpoles mature, they convert ammonia into urea, which is less toxic and requires less water for excretion compared to ammonia.

5. **Classify the Excretion Type**:
- Organisms that excrete urea as their nitrogenous waste are classified as ureotelic.

6. **Conclusion**:
- Therefore, frog tadpoles are classified as ureotelic organisms because they primarily excrete urea.

### Final Answer:
Frog's tadpoles are **ureotelic**.

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