code_name,trophic level units,WOD code table 1,AUTOTROPH (unspecified) also "holophytic" 2,AUTOTROPH-CHEMO 3,AUTOTROPH-PHOTO 4,HETEROTROPH (unspecified) also "holozoic" 5,HETEROTROPH-PARASITIC 6,HETEROTROPH-SAPROPHYTIC 7,PLASTIDIC; has plastids 8,NON-PLASTIDIC; does not have plastids 9,OLIGOTROPH