| A | B |
| Binomial nomenclature | System of naming organisms with two names |
| Classify | To put similar organisms in groups |
| Dichotomous key | Tool for identifying organisms |
| Division | Largest group within the plant kingdom |
| Genus | A group of similar species |
| Order | Subdivision of a class |
| Phylogeny | Evolutionary history of organisms |
| Species | The most specific of on organisms scientific names |
| Species diversity | Variety of plants and animals |
| Taxonomy | The science of classification |