Which of the following is/are not the points of the cell theory?
Cells do not arise from pre-existing cells.
Some living organisms are not made up of cells.
The cell theory was prepared methodically by the observations and inferences of Schleiden and Schwann. They concluded that all living organisms are made up of one or more cells. However, it was Rudolf Virchow, in 1855, who explained that cells divide and give rise to new cells and gave the theory its final shape. Hence, the postulates of cell theory were laid as follows:
So, options C and D are correct.