Here's a breakdown of the hierarchy of life:

* Domain: The broadest category, encompassing all living things. There are three domains: Bacteria, Archaea, and Eukarya.

* Kingdom: A large group of organisms that share certain characteristics. Examples include Animalia, Plantae, Fungi, and Protista.

* Phylum: A group of closely related classes within a kingdom.

* Class: A group of closely related orders within a phylum.

* Order: A group of closely related families within a class.

* Family: A group of closely related genera within an order.

* Genus: A group of closely related species.

* Species: The most specific category, representing a group of organisms that can interbreed and produce fertile offspring.

As you move down the hierarchy, the number of organisms in each category decreases.