D. all cells are the smallest living things, all organisms are composed of one or more cells and all cells arise spontaneously. B. all organisms are composed of one or more cells, all cells are the smallest living things and all cells arise form other cells.
The cell theory states. A. all organisms are composed of multiple cells, all cells arise spontaneously and cells require nutrients. B. all organisms are composed of one or more cells, all cells are the smallest living things and all cells arise from other cells.