Question

what do you understand by corals?​

Answer 1

Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.

Answer 2

Answer:

A tiny soft-bodied animal that typically lives within a stony skeleton grouped in large colonies and that is related to the Jellyfish are called corals.