Name the single celled microorganic which found in glacier to deserts as hot spring.

Options

A. Algae
B. Virus
C. Bacteria
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks for the name of a single-celled microorganism that can be found in various extreme environments, specifically glaciers, deserts, and hot springs.

2. **Identifying the Options:** The options provided are:
- A) Algae
- B) Virus
- C) Bacteria
- D) None of these

3. **Analyzing the Options:**
- **Algae:** Generally, algae are not single-celled organisms; they can be multicellular and are primarily found in aquatic environments.
- **Virus:** Viruses are not classified as living organisms and do not fit the description of a single-celled microorganism.
- **Bacteria:** Bacteria are unicellular microorganisms that can thrive in a wide range of environments, including extreme conditions such as hot springs, glaciers, and deserts.
- **None of these:** This option can be eliminated since we have identified bacteria as a suitable answer.

4. **Conclusion:** Based on the analysis, the microorganism that fits the description of being single-celled and found in extreme environments is **Bacteria**.

5. **Final Answer:** The name of the single-celled microorganism found in glaciers, deserts, and hot springs is **Bacteria**.

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