| 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 system for naming organisms in which each organism is given a unique two part scientific name |
| genus | A classification grouping that consists of a number of similar closely related species |
| species | A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce |
| prokaryote | A organism who's cells lack a nucleus and some other cell structures |
| nucleus | The control center of a eukaryotic cell that directs the cells activitiesand contains the information that determines the cells form and function |
| eukaryote | An organism who's cells contain nuclei |