Other contributors have said "What are the eight levels of organization in the body?" is the same question as "What are the 12 levels of organization in Biology?" If you believe that these are not asking the same thing and should be answered differently, click here
What are the 12 levels of organization in Biology?
There are actually 7 levels of organization in biology:DomainKingdomPhylumClassOrderFamilyGenusSpeciesSubspeciesThis list goes from broadest to most specific.