Find out the correct diagrammatic representation of organismic response w.r.t. Regulators

Options

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Answer

To solve the question regarding the correct diagrammatic representation of organismic response with respect to regulators, we need to understand the concept of regulators and how they maintain homeostasis.

### Step-by-Step Solution:

1. **Understand Regulators**: Regulators are organisms that maintain a stable internal environment (homeostasis) despite changes in external conditions. This includes thermoregulation (temperature control) and osmoregulation (pH and water balance).

2. **Identify Homeostasis**: In regulators, the internal conditions remain constant even when the external environment varies significantly. For example, humans maintain an internal body temperature of approximately 37 degrees Celsius regardless of external temperatures ranging from freezing to very hot.

3. **Analyze the Graphs**: The question provides multiple graphs representing different types of organism responses:
- **Graph 1**: Represents conformers, which cannot regulate their internal conditions and their internal levels change directly with external levels.
- **Graph 2**: Represents partial regulators, which initially change their internal levels in response to external changes but then stabilize after a certain point.
- **Graph 3**: Represents true regulators, where the internal level remains constant regardless of external changes.

4. **Select the Correct Graph**: Based on the understanding of regulators, the third graph (Graph 3) accurately depicts the behavior of regulators, where the internal environment remains stable despite fluctuations in the external environment.

5. **Conclusion**: Therefore, the correct diagrammatic representation of organismic response with respect to regulators is option number 3.