Adult animal cell that does not divide is

Options

A. Skin cell
B. Hair cell
C. Stem cell
D. Nerve cell

Answer

To solve the question "Adult animal cell that does not divide is?", we will analyze the options provided and determine which type of cell does not undergo division.

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify an adult animal cell that does not divide.

2. **Review Cell Division**: Cell division is a process that requires certain structures within the cell, particularly centrioles, which are cylindrical organelles that play a crucial role in the process of cell division.

3. **Analyze the Options**:
- **Skin Cell**: Skin cells are known to divide. They have centrioles, which allow them to undergo mitosis and regenerate, especially after injuries.
- **Hair Cell**: Similar to skin cells, hair cells also divide. They have centrioles, which contribute to hair growth and regeneration.
- **Stem Cell**: Stem cells are unique in that they can divide and differentiate into various cell types. They also contain centrioles, enabling them to undergo division.
- **Nerve Cell**: Nerve cells (neurons) are specialized cells that typically do not divide. They lack centrioles, which means they do not undergo mitosis.

4. **Conclusion**: Based on the analysis, the adult animal cell that does not divide is the **nerve cell**.

### Final Answer:
The correct answer is **nerve cell**.