| A | B |
|---|
| Kingdom | The largest groups of living things |
| Classification | The act of grouping things |
| Moneran | Has one cell with no nucleus |
| Protist | Has one cell with a nucleus |
| Fungi | Has many cells with a nucleus |
| Genus | Second smallest group of living things |
| Species | Smallest group of living things |
| Vertebrates | Animals with a backbone |
