Classification. Branch of Biology that deals with classification and naming living things. Aristotle classified living things into only two categories—plants or animals. So why classify further? It provides organization and identification for studying organisms.
Devised a system of grouping organisms into hierarchical categories according to their form and structure.
Binomial Nomenclature- system uses 2 names to identify an organism
Genus and species
Genus + species = Scientific name
Homo sapiens or H. sapiens
Drosophila melanogasteror D. melanogaster
Canisfamiliarisor C. familiaris
Carcarodoncarchariasor C. carcharias
Used to be 5 kingdoms when Eubacteria and Archbacteria were one kingdom called Monera
3 domains are above Kingdoms