carnivorous vs plant life

carnivorous is not a noun while plant life is a noun.

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

carnivorous (noun)	plant life (noun)
	(botany) a living organism lacking the power of locomotion

carnivorous (adjective)	plant life (adjective)
(used of plants as well as animals) feeding on animals
relating to or characteristic of carnivores