Final answer:
The taxonomic classification system organizes organisms based on their degree of relatedness. It uses a hierarchical model where organisms become more similar at each sublevel.
Step-by-step explanation:
The taxonomic classification system (also called the Linnaean system) organizes living organisms into a hierarchical model based on their degree of relatedness. At each sublevel, the organisms become more similar. For example, after the common beginning of all life, scientists divide organisms into three large categories called domains: Bacteria, Archaea, and Eukarya. Within each domain is a second category called a kingdom, followed by phylum, class, order, family, genus, and species.