| A | B |
|---|
| classfication | the process of grouping things together based on their similarities |
| taxonomy | the scientific study of how living things are classified |
| binomial nomenclature | two-part scientific naming system |
| Carolus Linnaeus | Swedish naturalist who devised system of naming organisms |
| genus | first word in an organism's scientific name, classification level within a family |
| species | second word in a scientific name, classification level within a genus |
| domain | the highest level of organization |
| kingdom | level of classification level within a domain |
| phylum | classification level within a kingdom |
| class | classification level within a phylum |
| order | classification level within a class |
| family | classification level within a family |
| prokaryote | organism whose cells lack a nucleus |
| nucleus | dense area in a cell that contains the chemical instructions that direct the cell's activities |
| archaea | domain of unicellular prokaryotes that differ from bacteria and are found in the most extreme environments |
| bacteria | domain of unicellular prokaryotes found all around us |
| eukaryote | domain of organsisms with cells that contain nuclei |
| protists | kingdom of unicellular organisms in the eukaryotic domain that cannot be classified as animal, plant, or fungus |
| fungi | kingdom of mostly multicellular organisms in the eukaryotic domain that are multicellular heterotrophs that feed by absorbing nutriets from dead or decaying organisms |
| plants | kingdom of multicellular organisms in the eukaryotic domain that are multicellular autotrophs |
| animals | kingdom of multicellular organisms in the eukaryotic domain that are heterotrophs |
