scaly vs biology

scaly is not a noun while biology is a noun.

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

scaly (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

scaly (adjective)	biology (adjective)
having the body covered or partially covered with thin horny plates, as some fish and reptiles
rough to the touch; covered with scales or scurf