| A | B |
|---|
| biodiversity | variety of organisms at all levels |
| taxonomy | science of describing, naming, and classifying organisms |
| taxon | a particular taxonomic group |
| kingdom | largest group in a domain |
| domain | category above kingdom |
| phylum | category just below a kingdom |
| class | make up phylums |
| order | category below classes |
| family | make up orders |
| genus | category of families and part of binomial nomenclature |
| species | make up genus and part of binomial nomenclature |
| binomial nomenclature | 2 part naming system using genus and species name |
| subspecies | variations of species that live in different areas |
| systematics | classifying organisms in terms of their natural relationships |
| phylogenetics | analysis of evolutionary relationships |
| phlogenetic diagram | diagram that shows how closely related taxa are |
| cladistics | system of phylogenetic analysis that uses shared and derived characteristics |
| shared character | a feature all members of a group have in common (all mammals have hair) |
| derived character | a feature that only evolved in a group (bird feathers) |
| clade | a group of organisms that includes an ancestor and all descendants |
| cladogram | diagram that organizes organisms by clade |
| bacteria | group of single-celled prokaryotes that have a cell wall |
| archea | group of prokaryotes that have a cell membrane and other properties |
| eukarya | organisms that have a nucleus and complex organelles |
| protista | eukaryotes that are not plant, animals, or fungi |
| fungi | eukaryotic, heterotrophic organisms that absorb nutrients (mushrooms, mold) |
| plantae | eukaryotes that are autotrophic (mosses, flowering plants) |
| animalia | eukaryotes that are heterotrophic and develop from embryos |
