Ureotelic animals are those in which the main nitrogenous waster product is

Options

A. Amino acids
B. Urea
C. Uric acid
D. Ammonia

Answer

To solve the question regarding ureotelic animals and their main nitrogenous waste product, follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Ureotelic":**
- Ureotelic animals are those that primarily excrete urea as their main nitrogenous waste product.

2. **Identify the Options:**
- The options given are:
- Amino acids
- Urea
- Uric acid
- Ammonia

3. **Analyze Each Option:**
- **Amino acids:** These are building blocks of proteins and are not primarily excreted as waste.
- **Urea:** This is a nitrogenous waste product that is less toxic than ammonia and requires less water for excretion.
- **Uric acid:** This is excreted by some animals (like birds and reptiles) but is not the main product for ureotelic animals.
- **Ammonia:** This is highly toxic and requires a large amount of water to be excreted, typically by aquatic animals.

4. **Conclusion:**
- Since ureotelic animals primarily excrete urea, the correct answer to the question is **Urea**.

### Final Answer:
Ureotelic animals are those in which the main nitrogenous waste product is **Urea**.

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