Here's the breakdown of the hierarchical classification system:

* Domain: The broadest category (e.g., Bacteria, Archaea, Eukarya).

* Kingdom: A group of related phyla (e.g., Animalia, Plantae).

* Phylum: A group of related classes (e.g., Chordata, Arthropoda).

* Class: A group of related orders (e.g., Mammalia, Aves).

* Order: A group of related families (e.g., Primates, Carnivora).

* Family: A group of related genera (e.g., Hominidae, Felidae).

* Genus: A group of related species (e.g., Homo, Panthera).

* Species: A group of organisms that can interbreed and produce fertile offspring (e.g., Homo sapiens, Panthera leo).