What is the correct order of classification categories from least to most inclusive?

The correct order of classification categories from least to most inclusive is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. This hierarchy reflects the levels of biological classification that are used to organize living organisms based on their evolutionary relationships and characteristics.

In this classification system, species represent the most specific and least inclusive category, referring to individual organisms that can interbreed. As you move up the hierarchy, each successive category encompasses a broader range of organisms. For example, a genus includes multiple species that share common characteristics, while a family groups together related genera. This trend continues all the way up to domain, which is the highest, most inclusive level that categorizes life into three main domains: Archaea, Bacteria, and Eukarya.

The other options list categories in incorrect sequences or mix levels of classification that do not follow the established hierarchy. Understanding this classification system is crucial for studying biology, as it helps scientists communicate about organisms and understand their relationships within the tree of life.