Is a Coral Really a Single Animal?

Coral reef is a hole on. And in fact, what's interesting with corals, if youve ever studied, i actually used to grow corals. My brother grows corals as a hobby, and as a sort of profession, he sells them too. So coral, is a coral a single animal? Or is it many animals together? Who's to say? Maybe there isn't one way that a coral is. You have millions of cells that are dying every day in your body. They're getting replenished and replaced. The amazon rain forest is the holon made up of holons of trees. I mean, how think of how many trillions of trees there are