Final answer:
Biologists use the taxonomic classification system to classify organisms into a hierarchical structure, from domains to species, which reflects both their relationships and evolutionary history. This helps to manage the biological diversity and understand evolutionary mechanisms.
Step-by-step explanation:
The taxonomic classification system is a method biologists use to classify and organize living organisms into groups based on shared characteristics. This hierarchical model starts from the broadest category and becomes more specific at each sublevel, with the belief that at each level the organisms share more similarities. The hierarchy includes domains, which are then divided into kingdoms, followed by phylum, class, order, family, genus, and the most specific level, species. The scientific name of an organism reflects its genus and species, which is known as binomial nomenclature. This classification method not only serves the practical purpose of organizing the vast diversity of life but also helps biologists understand the evolutionary relationships, or phylogeny, between different groups of organisms.