| A | B |
|---|
| Robert Brown | worked with biological stains and came up with the term nucleus |
| Zacharias Janssen | developed the first compound microscope |
| Matthias Schleiden | botanist who made the observation that all plants are made of cells |
| Anton van Leeuenhoek | produced a simple microscope that magnified 270x |
| Theodor Schwann | German zoologist who observed that all animals are made up of cells |
| Dr. Doherty | Reading's superintendent |
| Rudolph Virchow | studied disease causing organisms and concluded that cells come only from other cells through asexual reproduction |
| Robert Hooke | Examined pieces of cork and described what he saw in cells |
