submerged vs biology

submerged is not a noun while biology is a noun.

Word	Noun	Adjective	Verb	Adverb
submerged	No	Yes	No	No
biology	Yes	No	No	No

submerged (noun)	biology (noun)
	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms

submerged (adjective)	biology (adjective)
beneath the surface of the water
growing or remaining under water