Insects are

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Types of Excretory Products:**
- There are different types of excretory products based on the nitrogenous waste they excrete:
- **Ureotelic:** Excrete urea (e.g., humans).
- **Aminotelic:** Excrete amino acids (less common).
- **Ammonotelic:** Excrete ammonia (e.g., many aquatic animals).
- **Uricotelic:** Excrete uric acid (e.g., insects, birds, reptiles).

2. **Identifying the Correct Type for Insects:**
- Insects are known to excrete uric acid as their primary nitrogenous waste product. This categorizes them as uricotelic animals.

3. **Characteristics of Uric Acid Excretion:**
- Uric acid is less toxic compared to ammonia and urea.
- It is less soluble in water, which makes it advantageous for conserving water, especially in terrestrial environments.

4. **Conclusion:**
- Based on the information, the correct classification for insects in terms of their excretory product is **uricotelic**.

5. **Final Answer:**
- Therefore, the answer to the question "Insects are" is **uricotelic** (Option 4).

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