Anything less than a complete structure of a cell does not ensure independent living

Answer

### Step-by-Step Solution:

1. **Definition of a Cell**: A cell is the basic structural and functional unit of life. It is the smallest unit that can carry out all life processes.

2. **Importance of Complete Cell Structure**: A complete cell structure includes all the necessary organelles and components (like the nucleus, cytoplasm, cell membrane, etc.) that are essential for the cell to perform its functions.

3. **Role of Cells in Organisms**: Cells are the building blocks of all living organisms. They group together to form tissues, which then combine to form organs. These organs work together in organ systems, which ultimately make up the entire organism.

4. **Independent Living**: For an organism to live independently, it must have a complete cell structure that can perform all necessary life functions, such as metabolism, growth, and reproduction.

5. **Conclusion**: Therefore, anything less than a complete structure of a cell (like a virus or a fragment of a cell) cannot sustain independent life. Such incomplete structures lack the necessary components to carry out life processes on their own.