bionomic vs biological science

bionomic is not a noun while biological science is a noun.

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

bionomic (noun)	biological science (noun)
	the science that studies living organisms

bionomic (adjective)	biological science (adjective)
of or relating to the science of ecology