theory of organic evolution vs biology

theory of organic evolution and biology both are nouns.

Word	Noun	Adjective	Verb	Adverb
theory of organic evolution	Yes	No	No	No
biology	Yes	No	No	No

theory of organic evolution (noun)	biology (noun)
(biology) a scientific theory of the origin of species of plants and animals	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms