Elimination of nitrogenous metabolic waste products from the body is defined as

Options

A. Excretion
B. Osmoregulation
C. Assimilation
D. Egestion

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the definition of the process involved in the elimination of nitrogenous metabolic waste products from the body.

2. **Identifying the Options**: The options provided are:
- Excretion
- Osmoregulation
- Assimilation
- Egestion

3. **Analyzing Each Option**:
- **Excretion**: This is the process of removing waste products from the body, specifically nitrogenous wastes such as ammonia, urea, and uric acid. This option seems relevant to the question.
- **Osmoregulation**: This refers to the regulation of osmotic pressure in the body fluids to maintain homeostasis. It does not specifically relate to the elimination of nitrogenous waste.
- **Assimilation**: This is the process of absorbing nutrients, vitamins, and minerals from food. It does not pertain to waste elimination.
- **Egestion**: This is the removal of undigested food material from the body. It is not related to nitrogenous waste.

4. **Conclusion**: Based on the analysis, the correct answer is **Excretion**, as it specifically refers to the elimination of nitrogenous metabolic waste products from the body.

**Final Answer**: Excretion

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