Phyla or divisions are grouped into kingdoms , and finally similar kingdoms are placed within the same domain . This system of classification helps to make sense of the incredible diversity of life on earth. Each name is a unique, 2-part, Latinized name. Since it is in Latin it is underlined or italicized. They assume that species are distinguishable units from one another.
Classification also implies evolutionary relationships between groups.
The biggest advantage is its organization. This system separates out closely related organisms. Also, it delineates hierarchically groups and subgroups. Systematics is the branch of biology concerned with the evolutionary basis for the diversity of life. These relationships are typically diagrammed as phylogenetic trees.