It is not related to replacement of degenerated red blood cells by new ones

Options

A. Growth through undifferentiated
B. Growth through reserved cells
C. Multiplication growth
D. Accretionary growth.

Answer

To solve the question "It is not related to replacement of degenerated red blood cells by new ones," we need to analyze the options provided and determine which one does not relate to the replacement of degenerated red blood cells (RBCs).

### Step-by-Step Solution:

1. **Understanding the Replacement of RBCs**:
- Red blood cells have a limited lifespan and are continuously replaced in the body. The replacement occurs through specific types of cells known as reserve or undifferentiated cells.

2. **Analyzing the Options**:
- **Growth through Undifferentiated Reserve Cells**: This type of growth is directly related to the replacement of degenerated RBCs. Undifferentiated reserve cells can divide and generate new RBCs when needed. Therefore, this option is related to the replacement process.

- **Multiplication Growth**: This refers to an increase in the number of cells. While RBCs themselves do not multiply directly to replace themselves, the process of multiplication growth can contribute to the overall increase in cell numbers, including RBCs. However, since RBCs are replaced through reserve cells, this option can be considered indirectly related but not a direct mechanism for RBC replacement.

- **Accretionary Growth**: This type of growth refers to the increase in cell size or mass rather than cell number. It is also related to the growth process but does not directly pertain to the replacement of degenerated RBCs. Thus, this option is also not directly related to the replacement of RBCs.

3. **Identifying the Correct Answer**:
- Since the question asks for the option that is **not related** to the replacement of degenerated RBCs, we find that both "Multiplication Growth" and "Accretionary Growth" do not directly relate to the replacement of RBCs. However, "Multiplication Growth" can still be seen as indirectly related due to the increase in cell numbers.

4. **Conclusion**:
- Therefore, the option that is least related to the replacement of degenerated red blood cells is **Accretionary Growth**.

### Final Answer:
**Accretionary Growth** is not related to the replacement of degenerated red blood cells by new ones.

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