biological vs biology

biological is not a noun while biology is a noun.

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

biological (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

biological (adjective)	biology (adjective)
(of a parent or child) related by blood; genetically related
pertaining to biology or to life and living things