activity vs organic process

activity and organic process both are nouns.

Word	Noun	Adjective	Verb	Adverb
activity	Yes	No	No	No
organic process	Yes	No	No	No

As nouns, organic process is a hypernym of activity; that is, organic process is a word with a broader meaning than activity:

Other hypernyms of activity include biological process.

activity (noun)	organic process (noun)
any specific behavior	a process occurring in living organisms
the trait of being active; moving or acting rapidly and energetically
an organic process that takes place in the body
a process existing in or produced by nature (rather than by the intent of human beings)
the state of being active
(chemistry) the capacity of a substance to take part in a chemical reaction