| A | B |
| classification | makes things easier to find and study |
| taxonomy | scientific study of how things are classified |
| Aristole | first scientist to develop classification for animals |
| Linnaeus | devised binomial naming system |
| Genus | first part of an organisms name |
| species | group of organisms that can mate and produce fertile offspring |
| binomial nomenclature | system in which each organism is given a two part name |
| Darwin | proposed theory of evolution |
| taxonomic key | series of paired statements describing an organism |
| kingdom | broadest level of classification |
| phyla | kingdoms are divided into these |
| class | phylums are divided into these |
| order | classes are divided into these |
| family | orders are divided into these |
| genus | families are divided into these |