| A | B |
| classification | process of grouping things based on their similarities |
| taxonomy | the scientific study of how things are classified |
| binomial nomenclature | a unique two-part scientific name for an organism |
| Genus | the first word in an organism’s scientific name |
| genus | a classification grouping that contains similar, closely related organisms |
| Species | the second word in a scientific name, which describes a distinctive feature of an organism |
| species | a group of similar organisms that can mate with each other and produce offspring |
| domain | the broadest level of organization |
| taxonomic keys | useful tools that help determine the identity of organisms |