Which of the following is NOT a principle of the cell theory? Select one: O a. The cell is the basic unit of structure and function of living things. O b. All organisms are made of cells. O c. Very few cells reproduce. O d. All cells are produced by existing cells.

“ Which of the following is NOT a principle of the cell theory? Select one: O a. The cell is the basic unit of structure and function of living things. O b. All organisms are made of cells. O c. Very few cells reproduce. O d. All cells are produced by existing cells. ”