Classes with a single subclass

'bacterial cell'
'biological action'
'biological colony'
'biological function'
'carbohydrate monomer'
'catalytic role'
'class gamma proteobacteria value region'
'class insecta value region'
'class mammalia value region'
'class saccharomycetes value region'
'drug role'
'entire protein molecule'
'epithelial cell'
'family drosophilidae value region'
'family enterobacteriaceaea value region'
'family hominidae value region'
'genus candida value region'
'genus drosophila value region'
'genus escherichia value region'
'genus homo value region'
'genus saccharomyces value region'
'great ape'
'growing process'
'immaterial processual entity'
'kingdom bacteria value region'
'kingdom fungi value region'
'legal entity'
'molecular function'
'noncanonical static processual entity'
'noncanonical value region'
'one dimensional physical entity'
'order diptera value region'
'order enterobacteriales value region'
'order primates value region'
'order saccharomycetales value region'
'organ system'
'organism action'
'phylum arthropoda value region'
'phylum ascomycota value region'
'phylum chordata value region'
'phylum proteobacteria value region'
'physical boundary'
'physical processual entity'
'portion of heterogenous liquid'
'portion of heterogenous solid'
'process quality'
'subatomic particle'
'subfamily drosophilinae value region'
'subphylum saccharomycotina value region'
'subphylum vertebrata value region'
'tissue process'
*
arthropod
atom
condition
fungus
insect
invertebrate
language
mammal
plan
primate