| A | B |
| classify | to group ideas, information, or objects, based on their similarities |
| taxonomy | the science of grouping and naming organisms |
| kingdom | the highest of the taxonomic categories, having the largest number of species |
| binomial nomenclature | the system of naming all organisms with 2 words |
| phylogeny | the evolutionary history of an organism |
| prokaryotes | before nucleus |
| eukaryotes | true nucleus |
| phylum | the second highest of the taxonomic categories in the animal kingdom |
| deforestation | destruction of earth's forest |
| species diversity | the great variety of plant and animal species on earth |