parasite vs plant life

parasite and plant life both are nouns.

Word	Noun	Adjective	Verb	Adverb
parasite	Yes	No	No	No
plant life	Yes	No	No	No

parasite (noun)	plant life (noun)
an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host	(botany) a living organism lacking the power of locomotion
a follower who hangs around a host (without benefit to the host) in hope of gain or advantage