subspecies vs biological science

subspecies and biological science both are nouns.

Word	Noun	Adjective	Verb	Adverb
subspecies	Yes	No	No	No
biological science	Yes	No	No	No

subspecies (noun)	biological science (noun)
(biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species	the science that studies living organisms