| A | B |
|---|
| classification | grouping of organisms based on a set of criteria |
| taxonomy | branch of biology that identifies, names and classifies species based on their natural relationships |
| Binomial nomenclature | system of naming organisms, which gives a two-word Latin name to each species |
| taxon | named group of organisms |
| genus | taxonomic group of closely related species with a common ancestor |
| family | taxonomic group of similar, related genera that is smaller than a genus and larger than an order |
| order | taxonomic group that contains related families |
| class | taxonomic group that contains one or more related orders |
| phylum | taxonomic group of related classes |
| division | taxonomic term used instead of phylum to group related classes of plants and bacteria |
| kingdom | taxonomic group of related phyla or divisions |
| domain | taxonomic group of one or more kingdoms |
