| A | B |
|---|
| Anton von Leeuwenhoek | He saw tiny living organisms in a drop of water |
| Robert Hooke | observed cook to be made of tiny empty chambers |
| Matthias Schleiden | said all plants are made of cells |
| Theodor Schwann | said animals were also made of cells |
| Rudolph Virchow | said new cells could be produced only from the division of existing cells |
| eukaryotic | cells that make up your body |
| prokaryotic | a bacterial cell |
| all living things | are composed of cells |
| organelles | specialized structures in eukaryotic cells |
| nucleus | found in the cells of eukaryotes |
