biological science vs activator

biological science and activator both are nouns.

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

biological science (noun)	activator (noun)
the science that studies living organisms	(biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription