What is the smallest unit of life ?

Options

A. Cells
B. Organs
C. Matter
D. Air

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the smallest unit of life. We need to identify which option represents this smallest unit.

2. **Analyzing the Options**: We have four options to consider:
- Option A: Cells
- Option B: Organs
- Option C: Matter
- Option D: Air

3. **Evaluating Each Option**:
- **Cells**: Cells are the basic structural and functional units of all living organisms. They are the smallest units that can carry out life processes.
- **Organs**: Organs are made up of multiple tissues, which in turn are made up of cells. Therefore, organs are larger than cells and cannot be the smallest unit of life.
- **Matter**: Matter refers to anything that has mass and occupies space. It is not specifically related to living organisms.
- **Air**: Air is a mixture of gases and is not a unit of life. It is essential for many life processes but does not represent a unit of life itself.

4. **Conclusion**: Based on the analysis, the smallest unit of life is **Cells**. Cells are fundamental to the structure and function of living organisms.

5. **Final Answer**: The smallest unit of life is **Cells**.

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