biology vs variety

biology and variety both are nouns.

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

biology (noun)	variety (noun)
the science that studies living organisms	noticeable heterogeneity
all the plant and animal life of a particular region	a difference that is usually pleasant
characteristic life processes and phenomena of living organisms	a category of things distinguished by some common characteristic or quality
	a show consisting of a series of short unrelated performances
	(biology) a taxonomic category consisting of members of a species that differ from others of the same species in minor but heritable characteristics
	a collection containing a variety of sorts of things