What do you mean by eutely ?

Answer

**Step-by-Step Solution:**

1. **Definition of Eutely**: Eutely is a biological term that refers to a phenomenon observed in certain organisms where there is a fixed and genetically constant number of somatic cells.

2. **Characteristics of Eutely**: In organisms exhibiting eutely, the number of cells remains the same throughout the life cycle of the organism. This means that the total cell count does not vary, regardless of the organism's growth or development.

3. **Examples of Eutely**: Eutely is commonly found in certain species of nematodes (roundworms) and some other multicellular organisms. For instance, the nematode *Caenorhabditis elegans* is a well-known example of an organism that exhibits eutely.

4. **Significance of Eutely**: The concept of eutely is significant in understanding the developmental biology of organisms. It provides insights into how cell division and differentiation occur in a controlled manner, leading to a stable and predictable organism structure.

5. **Conclusion**: In summary, eutely is defined as the presence of a fixed number of somatic cells in an organism, which is genetically determined and remains constant throughout its life.

---