submersed vs biological science

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

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

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

submersed (adjective)	biological science (adjective)
beneath the surface of the water
growing or remaining under water