What exactly is coral?

Answer 1

Coral are extremely ancient animals that evolved into
rebuilding forms over the last 25 million years.
Coral reefs are warm, clear, shallow ocean habitats
that are rich in life. The reef's massive structure
is formed from coral polyps, tiny animals that live
in colonies; when coral polyps die, they leave behind
a hard, stony, branching structure made of limestone.
They also contain High biodiversity.

a place that is home to more species of fishes and invertebrates than any other enviorment on earth.

Answer 2

This might help:Coral is a rocklike deposit consisting of the calcareous skeletons secreted by various anthozoans. Coral deposits often accumulate to form reefs or islands in warm seas. Any of numerous chiefly colonial marine polyps of the class Anthozoa that secrete such calcareous skeletons. The red-orange, pinkish, or white deposits secreted by corals of the genus Corallium,used to make jewelry and ornaments.

Answer 3

Corals are small animals called coral polyps, which anchor themselves to a rock and then extract calcium from seawater and use it to build a hard structure to protect themselves. When they die the hard coral 'skeleton' remains and other coral polyps settle on it and build their own little homes. Over millions of years the amount of coral builds up into coral reefs and coral atolls.

Answer 4

Coral is a marine animal

it lives under water

Answer 5

A single celled animal - called coral of the type anthazoans.

The thing that you get to see is the combined skeleton of million tiny animals.