The organism which are present in tropical regions called

Options

A. mesotherms
B. megatherms
C. microtherms
D. hekistotherms

Answer

To answer the question "The organism which are present in tropical regions are called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Tropical Regions**:
- Tropical regions are characterized by a warm climate, with average annual temperatures exceeding 24 degrees Celsius. This climate supports a specific type of flora and fauna.

2. **Identify the Types of Organisms Based on Temperature Adaptation**:
- Organisms are classified based on their temperature adaptation:
- **Mesotherms**: Organisms that thrive in subtropical regions (17°C to 24°C).
- **Megatherms**: Organisms that thrive in tropical regions (above 24°C).
- **Microtherms**: Organisms that are adapted to temperate regions (7°C to 17°C).
- **Hexotherms**: Organisms that are adapted to Arctic regions (below 7°C).

3. **Determine the Correct Classification**:
- Since we are focusing on organisms that thrive in tropical regions, the correct classification is **Megatherms**. These organisms are adapted to high temperatures and are found in tropical climates.

4. **Conclusion**:
- Therefore, the organisms present in tropical regions are called **Megatherms**.

### Final Answer:
The organisms which are present in tropical regions are called **Megatherms**.

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