The smallest and most basic unit of life is the cell. Cells are the building blocks of life and are composed of molecules, which are the smallest units of chemistry. The smallest living unit can range from 5 to 100 nanometers in size.

Cell

A cell is the smallest structural and functional unit of all living organisms and there are many kinds of cells. They can be unicellular, which means a single cell, or multicellular, which means more than one cell working together.

Molecules

Molecules are the building blocks of cells and help to make up their components. Molecules are tiny particles composed of atoms and combine together in different ways to form different things.

Atoms

Atoms are the smallest and most basic units of matter and the building blocks of all molecules. Atoms are composed of particles called protons and neutrons, which are held together by a strong force called nuclear force.

Conclusion

The smallest and most basic unit of life is the cell, and it is made of molecules, which are composed of atoms. Cells are the building blocks of life and come in various sizes and shapes. Without them, life as we know it would not exist.