taxonomy – the classification of living organisms into groups based on their similarities and differences

To remember the meaning of taxonomy, use the following mnemonic:

The quality of the taxi depends on the economy (taxonomy) of each country. The classification is clear if you put them into groups.

Taxonomy is the scientific classification of living organisms into groups based on their similarities, differences, and evolutionary relationships. This system helps scientists organise the enormous diversity of life on Earth and understand how different species are related to each other. 

The method of taxonomy used today uses eight ranks in the following order:

Note: Taxonomy transitioned from seven to eight classifications primarily due to the recognition of a new rank, the domain. Traditionally the seven ranks included kingdom, phylum, class, order, family, genus and species. However, with advancements in molecular biology and genetics, scientists discovered significant differences at a higher level of organisation among living organisms, leading to the establishment of three domains: Archaea, Bacteria and Eukarya. This new classification system provides a clear understanding of evolutionary relationships and the fundamental differences between these major groups. 

Scientists use various characteristics to classify organisms, including physical features, genetic similarities, and evolutionary history. The ordering system gets more specific each level it goes down. 

For example, humans are classified as Domain Eukaryote, Kingdom Animalia, Phylum Chordata, class Mammalia, order primates, family Hominidae, genus homo and species sapiens. To maintain consistency and be universally understood, terminology within classification is often a mix of Latin and Greek derived words.