| A | B |
| Discovered cells in cork | Robert Hooke |
| Discovered cells in pond water. | Anton Van Leeuwenhoek |
| Discovered all plants are made of cells. | Mathias Schleiden |
| Discovered all animals are made of cells. | Theodor Schwann |
| Discovered new cells come from living cells. | Rudolf Virchow |
| What are the three parts of the cell theory? | All living things are made of cells. Cells are the basic units of life. All cells come from other living cells. |
| Discovered all living things are made of cells. | Mathias Schleiden AND Theodor Schwann |