what is a coral?

Question

i need help for a school project

Answer 1

Animals of the phylum Cnidaria. The animal is basically a cup with tentacles. There are two types, soft coral and hard coral. It is the hard variety that make up reefs. Coral are unique because it makes its own skeleton from its secretions.

Basic Coral Biology
http://www.coexploration.org/bbsr/coral/html/body_basic_coral_biology.html

Answer 2

It is an animal that lives in colonies and builds a structure from calcium carbonate (like limestone) around its body. The combination of all the structures is a coral reef.

Answer 3

Corals are marine animals from the class Anthozoa and exist as small sea anemone-like polyps, typically in colonies of many identical individuals.

Answer 4

A group of animals that produce the lovely life sanctuary and reserve under the majestic seas. :D