In reptile, the excretory product is

Options

A. Urea
B. Uric acid
C. Uric acid in terrestrial reptiles and urea in aquatic from
D. Uric acid in aquatic reptiles and urea in terrestrial reptiles.

Answer

**Step-by-Step Solution:**

1. **Identify the Types of Nitrogenous Wastes**: Understand that nitrogenous wastes can be classified into three main types: ammonia, urea, and uric acid. Each type has different properties and levels of toxicity.

2. **Understand Ammonia**: Recognize that ammonia is the most toxic form of nitrogenous waste. It requires a large amount of water for its excretion, making it more suitable for aquatic organisms.

3. **Understand Urea**: Note that urea is less toxic than ammonia and requires a moderate amount of water for excretion. It is typically found in terrestrial animals, including mammals and some amphibians.

4. **Understand Uric Acid**: Acknowledge that uric acid is the least toxic of the three and requires minimal water for excretion. This makes it advantageous for organisms that need to conserve water, such as reptiles and birds.

5. **Determine the Excretory Product in Reptiles**: Conclude that reptiles primarily excrete uric acid due to their adaptation to terrestrial environments where water conservation is crucial.

6. **Select the Correct Answer**: Based on the information gathered, the correct answer to the question is that the excretory product in reptiles is uric acid.

**Final Answer**: The excretory product in reptiles is uric acid.

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