heterologous vs biology

heterologous is not a noun while biology is a noun.

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

heterologous (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

heterologous (adjective)	biology (adjective)
derived from organisms of a different but related species
not corresponding in structure or evolutionary origin