| A | B |
| taxonomy | the science of classifying living things |
| levels of classification | 8 |
| hierarchy | classifying by levels |
| domain | largest classification level |
| species | smallest classification level |
| species | made up of related organisms that can mate and produce offspring |
| Aristotle | Greek philosopher-1st classification system |
| Carrolus Linnaeus | "The Father of Taxonomy" |
| binomial nomenclature | two-name naming system |
| Genus | first part of scientific name |
| species | 2nd part of scientific name |
| Dichotomous Key | series of numbered statements used as a guide to identify organisms |
| Field guide | tool used to identify organisms or objects found in nature |
| autotroph | organism that CAN make its own food |
| heterotroph | organism that CANNOT make its own food |
| multicellular | many cells |
| unicellular | one cell |
| scientific name | made up of the Genus and species names |