The organism found in boiling thermal springs are

Options

A. Fungi
B. Protists
C. Archaebacteria
D. Actinomycetes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of organisms that can be found in boiling thermal springs.

2. **Identifying the Relevant Group**: Organisms that thrive in extreme environments, such as boiling thermal springs, are typically classified under a specific group of bacteria known as archaebacteria.

3. **Classifying Archaebacteria**: Archaebacteria can be further categorized into several types, including:
- Methanogens: These are methane-producing bacteria found in environments like the rumen of ruminant animals.
- Thermoacidophiles: These organisms can survive in high-temperature and acidic conditions, making them suitable for boiling thermal springs.
- Halophiles: These bacteria thrive in high-salt environments.

4. **Focusing on Thermoacidophiles**: Since the question specifically mentions boiling thermal springs, the relevant type of archaebacteria is the thermoacidophiles. They can withstand temperatures around 100 degrees Celsius due to their unique adaptations.

5. **Adaptations of Thermoacidophiles**: These organisms have special adaptations that allow them to survive in extreme conditions:
- They possess heat-resistant enzymes that function optimally at high temperatures.
- Their cell membranes contain branched-chain lipids, which provide stability and integrity at elevated temperatures.

6. **Conclusion**: Therefore, the organisms found in boiling thermal springs are classified as **thermoacidophilic archaebacteria**.

**Final Answer**: The organisms found in boiling thermal springs are **Archaebacteria**, specifically **thermoacidophiles**.

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