| A | B |
| classification | the grouping of living things according to similar characteristics |
| taxonomy | the science of classification |
| taxonomist | general name for a scientist who works in the field of classifying living organisms |
| Aristotle | ancient Greek scientist |
| *Aristotle | *classified animals into groups according to the way they moved |
| John Ray | English taxonomist in the 1600's (during the Renaissance) |
| *John Ray | * classified English plants and animals by their internal structures |
| Carolus Linnaeus | Swedish taxonomist of the 1700's |
| *Carolus Linnaeus | *invented <I>binomial nomenclature</I> for naming all living things |
| binomial nomenclature | literally means "two-name naming-system" |
| *binomial nomenclature | *naming system invented by Linnaeus that uses "genus + species" to name an organism |
| genus name | first part of an organism's scientific name |
| species name | second part of an organism's scientific name |