In this quiz, I came across this sentence.
While some types of coral reefs off the Hawaiian coastline are living others are dead.
But if it were me, I would use the word alive instead of living.
While some types of coral reefs off the Hawaiian coastline are alive others are dead.
I would say the cat is alive!(after I saw a cat which seemed apparently dead but was not dead yet) rather than the cat is living!.
Is my usage correct? And what is the difference in meaning between those two sentence?