The main points of the cell theory are:
1. The cell is the SMALLEST living unit of life.
2. The cell is so small is it is not visible to the naked eye.
3. The shape of the cell can vary based on the different lifeforms they are in.
4. The size of the cell also varies.
5. All living organisms or lifeforms are made from cells.
6. Cells originate from a pre-existing cell, in multicellular lifeforms, then the pre-existing cell will divide into many other cells with the process repeating.
7. All cells retain the same properties, such as growth, respiration, and etc.