food web vs organic phenomenon

food web and organic phenomenon both are nouns.

Word	Noun	Adjective	Verb	Adverb
food web	Yes	No	No	No
organic phenomenon	Yes	No	No	No

As nouns, organic phenomenon is a hypernym of food web; that is, organic phenomenon is a word with a broader meaning than food web:

food web: (ecology) a community of organisms where there are several interrelated food chains
organic phenomenon: (biology) a natural phenomenon involving living plants and animals

food web (noun)	organic phenomenon (noun)
(ecology) a community of organisms where there are several interrelated food chains	(biology) a natural phenomenon involving living plants and animals