An animal that can survive at `10^(@)C` and `40^(@)C` both, can be placed under the category of

Options

A. conformers
B. regulators
C. migratory organisms
D. modifiers

Explanation

To determine the category of an animal that can survive at both 10°C and 40°C, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Temperature Tolerance**: The question states that the animal can survive at two extreme temperatures: 10°C and 40°C. This indicates that the animal has a wide range of temperature tolerance.

2. **Identify the Types of Organisms**: In ecology, organisms can generally be categorized as either "regulators" or "conformers" based on how they respond to environmental changes, particularly temperature:
- **Regulators**: These organisms can maintain a constant internal environment (homeostasis) regardless of external temperature changes. Examples include birds and mammals.
- **Conformers**: These organisms' internal conditions change with the external environment. They cannot maintain homeostasis and their body temperature fluctuates with the ambient temperature.

3. **Analyze the Implications of Wide Temperature Range**: An animal that can survive in such a wide temperature range (from 10°C to 40°C) is likely to be a regulator. This is because maintaining a stable internal environment across such a range of external temperatures requires physiological adaptations that are characteristic of regulatory organisms.

4. **Conclusion**: Since the animal can survive at both 10°C and 40°C, it is categorized as a **regulator**. This means it has the ability to maintain homeostasis despite changes in the external temperature.

### Final Answer:
The animal can be placed under the category of **regulators**.

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