Which experiments led to changes to the original cell theory ?

The experiments that show all cells are similar in the how they metabolize and in their composition.

Explanation:

The cell theory states that ;

1. All living things are made up of cells.

2. Cell is the smallest, functional and structural unit of life.

3. All cells come from preexisting cells through process of cell division.

The experiments that show all cells similar in how they metabolize and in their changed has led to changes in the original cell theory states above.

"a.) well–developed vascular system."