Which of the following reproduces by the method of fragmentation ?

Options

A. potato
B. bryophyllum
C. spirogyra
D. almonds

Answer

To determine which of the given options reproduces by the method of fragmentation, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Fragmentation**: Fragmentation is a type of asexual reproduction where an organism breaks into smaller pieces, called fragments. Each fragment can grow into a new individual.

2. **Identify the Options**: The options provided are:
- Potato
- Bryophyllum
- Spirogyra
- All of the above

3. **Analyze Each Option**:
- **Potato**: Potatoes reproduce asexually through tubers, not by fragmentation.
- **Bryophyllum**: This plant can reproduce asexually through leaf cuttings that produce new plants, but it does not primarily reproduce by fragmentation.
- **Spirogyra**: This is a filamentous green algae that reproduces asexually through fragmentation. When the filaments break, each piece can grow into a new organism.

4. **Conclusion**: Based on the analysis, the organism that reproduces by fragmentation is **Spirogyra**.

5. **Final Answer**: The correct option is **C, Spirogyra**.