biology vs male

biology and male both are nouns.

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

biology (noun)	male (noun)
the science that studies living organisms	an animal that produces gametes (spermatozoa) that can fertilize female gametes (ova)
all the plant and animal life of a particular region	a person who belongs to the sex that cannot have babies
characteristic life processes and phenomena of living organisms

biology (adjective)	male (adjective)
	being the sex (of plant or animal) that produces gametes (spermatozoa) that perform the fertilizing function in generation
	for or pertaining to or composed of men or boys
	characteristic of a man