Taxonomic hierarchy, also known as biological classification, is a system used in biology to categorize and organize living organisms into a hierarchical structure.
The highest level of classification, consisting of three domains: Bacteria, Archaea, and Eukarya. These represent the major groups of living organisms. The primary levels of the taxonomic hierarchy, from broadest to most specific, are as follows:
Kingdom: a kingdom is one of the highest and most fundamental levels of the taxonomic hierarchy.
Phylum: A Phylum is a group of related classes.
Class: A class is a group of related order.
Order: An order is a group of related families.
Family: A family is a group of related genera.
Genus: A genus is a group of related species.
Species: A species consists of similar organisms.
| Taxa | Human | Pea |
|---|---|---|
| Kingdom | Animalia | Plantae |
| Phylum | Chordate | Magnoliophyta |
| Class | Mammalia | Magnoliopsida |
| Order | Primates | Fabales |
| Family | Hominidae | Fabaceae |
| Genus | Homo | Pisum |
| Species | Sapiens | Sativum |
| Scientific Name | Homosapiens | Pisum Sativum |
The earliest known system of classification of organisms comes from the Greek philosopher Aristotle. He classified all living organisms known at that time in two groups.
