Explain the hierarchy of classification.

Explanation

Human beings are not only interested in knowing more about different kinds of organisms and their diversities, but also the relationships among them. This branch of study is referred to as systematics. Systematics is the nrach of science that deals with the vast diversity of life. It also reveals the trends and evolutionary relationships of different groups of organisms. This relationships establish the phylogeny of organisms. A key part of systematics is taxonomy. Taxonomic hierarchy includes seven obligate catagories namely kingdom, phylum, class, order, family, genus and species and other intermediate categories such as subkingdom, grade, division, subdivision, subphylum, superclass, subclass, superorder, suborder, superfamily, subfamily, subspecies etc.