biology vs analogous

biology is a noun but analogous is not a noun.

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

biology (noun)	analogous (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

biology (adjective)	analogous (adjective)
	corresponding in function but not in evolutionary origin
	similar or equivalent in some respects though otherwise dissimilar