Uric acid is excretory product in

Options

A. Land animals
B. Aquatic animals
C. Amphibians
D. Animals that develop in shells.

Answer

To determine which group of animals excretes uric acid, we can analyze the options provided:

1. **Land Animals**:
- Land animals primarily excrete urea as their nitrogenous waste product. Urea is moderately toxic and requires a moderate amount of water for its excretion. Therefore, this option is incorrect regarding uric acid.

2. **Aquatic Animals**:
- Aquatic animals mainly excrete ammonia, which is highly toxic. Ammonia requires a large amount of water for its removal, making it suitable for aquatic environments where water is abundant. Thus, this option is also incorrect concerning uric acid.

3. **Amphibians**:
- Amphibians typically excrete urea, especially in their adult forms. While they can excrete ammonia in their larval stages (like tadpoles), they do not primarily excrete uric acid. Hence, this option is incorrect as well.

4. **Animals that Develop in Shells**:
- This group includes animals from the phylum Mollusca. These animals primarily excrete uric acid as their nitrogenous waste product. They are referred to as uricotelic organisms. Therefore, this option is correct.

Based on the analysis of the options, the correct answer is:

**D. Animals that develop in shells.**

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