Calcium carbonate
The hard coral polyp makes the coral
Cellulose.
It is a hard coral
hard coral
Hard Coral is not a fish but, some small fish live in hard coral.
Hard
Corals are hard because the individual animals, called polyps, each secrete calcium carbonate which hardens into a shell around each polyp.
Yes, Brain Coral is a hard coral, as are most forms of coral.it's a dry brittle textured coral breed.
Coral reefs are formed by polyps that produce a hard shell of calcium carbonate. The polyps belong to a group of animals known as Cnidaria.
Lignin is the substance that makes wood hard. It is a complex organic polymer that fills the spaces between cellulose fibers in wood, providing rigidity and strength to the material.
It is a hard coral that is usually lace like in apearence and come in a variety of colours.