AP BIOLOGY

Detailed explanation-1: -A domain is a larger, more inclusive category than a kingdom. Under this system, there are three domains-domain Bacteria (corresponding to domain Eubacteria), domain Archaea (corresponding to kingdom Archaebacteria), and domain Eukarya (corresponding to kingdoms Fungi, Plantae, Animalia, and kingdom “Protista”).

Detailed explanation-2: -Levels of Classification. The classification system commonly used today is based on the Linnean system and has eight levels of taxa; from the most general to the most specific, these are domain, kingdom, phylum (plural, phyla), class, order, family, genus (plural, genera), and species.

Detailed explanation-3: -Domain represents the first level or classification and is the most broad, classifying organisms mainly according to their cell types. The prokaryotes belong to domains Archaea and Bacteria, while all of the other living organisms are eukaryotes, and belong to domain Eukaryota.

Detailed explanation-4: -The key difference between kingdom and domain is that the kingdom is one of the five major groups of living organisms while the domain is one of the three taxonomic categories of living organisms above the kingdom level. Thus, domain is a category above the kingdom level.