What organisms are classified in a specific hierarchy?

Organisms are classified in a hierarchical system known as taxonomy, which includes several levels: domain, kingdom, phylum, class, order, family, genus, and species. This classification organizes living things based on shared characteristics and evolutionary relationships. For example, humans belong to the domain Eukarya, kingdom Animalia, phylum Chordata, class Mammalia, order Primates, family Hominidae, genus Homo, and species Homo sapiens. This system helps scientists communicate about different organisms and understand their relationships in the tree of life.