Visit the Reefs of Texas website. Energy and light zones 3. Makes shore zones safe from waves by making them and breaking them up, and creates quiet water marine habitats for a variety of species. High rates of CaCO 3 production play an important role in global carbon cycle 3. This makes them underwater tropical rainforests.
Chemicals produced by sea slugs and sponges to repel fish are useful as insecticides.
Coral skeletons are being investigated as substrate for bone grafts. Economies of tropical countries built on tourism and fishing 8. Fossil reefs on land are a source of building stone, cement F. Endangerment and decline of coral reefs 1. Population growth, development of tropical coastline a. 1 and 2 are cause of major declines in reefs in Jamaica, Barbados, Belize 3.