Why is a cell considered a structural and functional unit of living?

1) Living systems are made up of cells.
2) A cell can be part of a multicellular organism or an independent organism.
3) Living systems develop from one cell.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.