Answer:
The most appropriate answer would be taxonomy.
Taxonomy is the branch of science that deals with identification and classification of different organisms.
It mainly classifies different organisms into 8 main taxa or groups. The principal ranks used in modern taxonomic hierarchy are
- Domain
- Kingdom
- Phylum (division is used in botany)
- Class
- Order
- Family
- Genus
- Species.
It used various principles to identify and classify an organisms such as cellular organisation, mode of nutrition, mode of reproduction, phylogentic or evolutionary relationships et cetera.
