Living organisms are classified based on a system first developed by Carl Linnaeus in the 1700s.
Viruses are not included in this organization.
The typical structure memorized by students is:
Kingdom, Phylum, Class, Order, Family, Genus, Species
The order of these is remembered with the mnemonic:
“Kings Play Chess On Fine Glass Sets”
See also:
- binomial nomenclature
CoMo Science 
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