| A | B |
| classification | The process of grouping things based on their similarities. |
| taxonomy | The scientific study of how living things are classified. |
| binomial nomenclature | The naming system for organisms in which each organism is given a two part name--a genus name and a species name. |
| genus | A classification grouping that consists of a number of similar, closely related species. |
| evolution | The process by which species gradually change over time. |
| taxonomic key | A series of paired statements that describe the physical characteristics of differnent organisms. |
| taxonomy | The scientific study of how things are classifed. |
| Aristotle | The first scientist to develop a classification system; based on how the organisms moved. |
| scientific name | The genus and species names of an animal. |
| latin | The language of the classification system. |
| kingdom | The broadest level of organization in the classification system; there are 6 of these. |