| A | B |
|---|
| classification | division of organisms into orderly groups based on similarities |
| kingdom | level of classification after domain |
| phylum | level of classification after kingdom |
| class | level of classification after phylum |
| order | level of classification after class |
| family | level of classification after order |
| genus | level of classification after family |
| species | most specific of the levels of classification |
| taxonomy | science of identifying classifying and naming living things |
| bacteria | domain that contains all bacteria |
| Archaea | domain that contains prokaryotes that are different from bacteria |
| Protista | kingdom of mostly one-celled eukaryotic organisms |
| Plantae | kingdom that contains multicellular organisms that are usually green and photosynthesize |
| Fungi | kingdom of nongreen, eukaryotic organisms that obtain food by breaking down substances and absorbing nutrients |
| Animalia | kingdom that contains complex, multicellular organisms which lack cell walls and usually move about |
| Carolus Linnaeus | Swedish scientist who founded taxonomy |
| heterotroph | organism that cannot make its own food |
| autotroph | organism that can make its own food |
| domain | largest level of classification |
| Eukarya | domain that contains all eukaryotes |
