| A | B |
| autotrophs | organism that can make its own food |
| binomial nomenclature | system of naming living things by a two-part scientific name |
| class | classification group between phylum and order |
| classify | to put things into groups based upon similarities |
| division | classification group used in botany instead of phylum |
| family | classification group between order and genus |
| fungi | mainly multicellular organisms that have cell walls made up of chitin and obtain food from absorbing nutrients from their environment |
| genus | classification group of related species |
| heterotrophs | organsisms that cannot make their own food |
| kingdom | classification group made up of related phyla or divisions |
| monerans | single-celled microscopic organism whose nucleus does not have a nuclear membrane |
| order | classification group between class and family |
| phylum | classification group made up of related classes |
| protists | mostly single-celled organisms and one of the five kingdoms of living organisms |
| species | group of organisms that look alike and can reproduce among themselves |
| taxonomy | the science of classifying living things |