what are coral reefs?
Answers
Hard corals form the backbone of the coral reef ecosystem, providing an intricate three-dimensional structure with hiding places and habitat for thousands of species of fish, invertebrates like clams, shrimp, sea stars, sponges, and anemones, sea turtles, and many other animals. Each of these animals plays a unique role in the ecosystem, keeping it functioning and in balance. Watch a busy coral reef at Palmyra Atoll...
Functions of Coral Reefs: Coral reefs are important for many different reasons aside from supposedly containing the most diverse ecosystems on the planet. They: protect coastlines from the damaging effects of wave action and tropical storms. provide habitats and shelter for many marine organisms.
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Coral reefs are underwater structures made from calcium and carbonate secreted by corals.