stalked vs biological science

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

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

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

stalked (adjective)	biological science (adjective)
having or growing on or from a peduncle or stalk