The cell organelle which facilitates locomotion in certain
eukaryotic animal cell is

Options

A. Cilia
B. Flagella
C. Centrosome
D. Centriole

Answer

To solve the question regarding the cell organelle that facilitates locomotion in certain eukaryotic animal cells, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific cell organelle responsible for locomotion in eukaryotic animal cells. Locomotion refers to the movement of the cell.

2. **Identifying Options**: The options provided are:
- A) CDF
- B) Flagella
- C) Centrosome
- D) Centriole

3. **Analyzing Each Option**:
- **CDF**: This is not a recognized cell organelle related to locomotion.
- **Flagella**: This is a long, thread-like structure that extends from the cell surface and is known for its role in movement. It is commonly found in certain eukaryotic cells, such as sperm cells.
- **Centrosome**: This organelle is primarily involved in cell division and does not facilitate locomotion.
- **Centriole**: This structure is involved in the formation of spindle fibers during cell division and is also not related to locomotion.

4. **Conclusion**: Among the options, flagella is the only organelle that is specifically associated with locomotion in certain eukaryotic animal cells.

5. **Final Answer**: The cell organelle which facilitates locomotion in certain eukaryotic animal cells is **Flagella**.