in vivo vs in vitro

in vivo and in vitro both are adjectives.

Word	Noun	Adjective	Verb	Adverb
in vivo	No	Yes	No	Yes
in vitro	No	Yes	No	Yes

in vivo (adjective)	in vitro (adjective)
of a biological process occurring within a living organism	of a biological process occurring in an artificial environment outside the living organism

in vivo (adverb)	in vitro (adverb)
in the living organism	in an artificial environment outside the living organism