The Cell Theory includes: O All organisms are made up of cells.
O Cells are the basic building blocks of organisms.
O All cells come from pre-existing cells.
O All of the above

D) All of the above

Explanation:

This is crucial for us understanding biology because cells form the basis of all life. We can have unicellular organisms, like bacteria, like yeasts. [And] cell division, the division of a cell from one, to two, to four, forms the basis of growth and development of all living things.

All of the above.

Explanation:

The cell theory is that all organisms are made of cells, cells are the building blocks of organisms, and all cells come from pre-existing cells.