Insects are

Options

A. Ammonotelic
B. Ureotelic
C. Uricotelic
D. Aminotelic.

Answer

**Step-by-Step Solution:**

1. **Understanding Excretion Types**:
- Excretion in animals can be categorized into three types: ammonotelic, ureotelic, and uricotelic.
- Ammonotelic organisms excrete ammonia, ureotelic organisms excrete urea, and uricotelic organisms excrete uric acid.

2. **Analyzing Ammonotelic**:
- Ammonotelic organisms primarily release ammonia as their nitrogenous waste.
- This process requires a large amount of water, which is why it is common in aquatic animals.
- Since insects are not aquatic, this option is not applicable.

3. **Analyzing Ureotelic**:
- Ureotelic organisms excrete urea.
- Humans are an example of ureotelic organisms.
- However, this does not apply to insects.

4. **Analyzing Uricotelic**:
- Uricotelic organisms excrete uric acid.
- This is a common adaptation in terrestrial animals, including insects, birds, and reptiles.
- Uric acid excretion is beneficial as it conserves water, which is crucial for survival in terrestrial environments.

5. **Analyzing Aminotelic**:
- Aminotelic is not a recognized category for excretion in animals.
- No known organisms excrete amino acids as their primary nitrogenous waste.

6. **Conclusion**:
- Since insects excrete uric acid, they are classified as uricotelic organisms.
- Therefore, the correct answer is option C: insects are uricotelic.

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