In a classification system, kingdoms, species, and other taxa are typically arranged in a hierarchy of higher and lower levels. Higher levels include taxa such as kingdoms, which are more inclusive. Lower levels include taxa such as species, which are less inclusive.

How does the modern classification system work?

The modern system classifies organisms into eight levels: domain, kingdom, phylum, class, order, family, genus, and species. ... The more classification levels two organisms share, the more characteristics they have in common and the more closely related they are.

How does the classification system used to classify organisms work?

The taxonomic classification system (also called the Linnaean system after its inventor, Carl Linnaeus, a Swedish botanist, zoologist, and physician) uses a hierarchical model. Moving from the point of origin, the groups become more specific, until one branch ends as a single species.