| A | B |
|---|
| unicellular | organism made of a single cell |
| multicellular | organism made up of many cells |
| microscope | instrument which makes an object bigger than it is |
| bacteria | tiny single-celled organism |
| Louis Pasteur | observed bacteria - developed Pasteurization |
| Robert Hooke | gave the cell its name (looked at cork) |
| Anton van Leeuwenhoek | first person to describe cells |
| Living things have these characteristics | organized, can grow, can respond, can reproduce |
| cell theory | cells come from other cells, cells support life, living things have cells |
