Final answer:
The three tenants of the cell theory are: 1) all organisms are made of one or more cells, 2) cells are the basic unit of biological structure and function, and 3) all cells come from preexisting cells.
Step-by-step explanation:
The cell theory consists of three main tenets:
- All organisms are made of one or more cells.
- Cells are the basic unit of biological structure and function.
- All cells come from preexisting cells.