reproduce vs reproduction

reproduce is not a noun while reproduction is a noun.

Word	Noun	Adjective	Verb	Adverb
reproduce	No	No	Yes	No
reproduction	Yes	No	No	No

reproduce (noun)	reproduction (noun)
	the sexual activity of conceiving and bearing offspring
	the act of making copies
	copy that is not the original; something that has been copied
	recall that is hypothesized to work by storing the original stimulus input and reproducing it during recall
	the process of generating offspring

reproduce (verb)	reproduction (verb)
have offspring or produce more individuals of a given animal or plant
repeat after memorization
make a copy or equivalent of
recreate a sound, image, idea, mood, atmosphere, etc.