Systematics
Biological systematics is the examine of the diversification of alive forms, both past in addition to present, in addition to the relationships among living things through time. Relationships are visualized as evolutionary trees synonyms: cladograms, phylogenetic trees, phylogenies. Phylogenies develope two components: branching appearance showing multinational relationships and branch length showing amount of evolution. Phylogenetic trees of shape and higher taxa are used to explore the evolution of traits e.g., anatomical or molecular characteristics and the distribution of organisms biogeography. Systematics, in other words, is used to understand the evolutionary history of life on Earth.
The word systematics is derived from Latin word `systema', which means systematic arrangement of organisms. Carl Linnaeus used 'Systema Naturae' as the denomination of his book.