What is the correct order of biological classification from broadest to most specific?

The correct order of biological classification from broadest to most specific is Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species. This classification system, known as the Linnaean taxonomy, is used by scientists to organize and categorize living organisms based on shared characteristics and evolutionary relationships.

Starting with Domain, which is the highest and most inclusive rank, it encompasses all forms of life, dividing them into three major groups: Archaea, Bacteria, and Eukarya. Following Domain is Kingdom, which further categorizes life into broad groups such as Animalia, Plantae, Fungi, and Protista. As you progress down the hierarchy, each level (Phylum, Class, Order, Family, Genus) becomes more specific, ultimately leading to Species, which identifies a single, unique type of organism.

The other options fail to present the complete and correct hierarchy of classification, either omitting certain ranks like Family or misordering them, which makes them inaccurate representations of the biological classification system. Understanding this hierarchy is crucial for students and professionals studying biology, as it is fundamental to the organization and identification of the vast diversity of life on Earth.