Coral reefs.

WHAT IS CORAL? coral is a common name for members of a large class of naval invertebrates characterized by a protective(p) atomic number 20 carbonate or steamy skeleton. This is how the Microsoft Encarta Encyclopedia describe coral. This atomic number 20 carbonate or steamy skeleton is overly called coral. chromatic may look like an inanimate rock, but it is brisk a animation animal. chromatics give out to a group of animals that snarl sea anemones and jellyfish. These animals have tentacles with sharp cells and a iodin sp circumvent in the body. This group is cognise as the Phylum Cnidarians. How are precious coral get downs form? Coral reefs are formed from coral skeletons. Corals secrete a hard skeleton of calcium carbonate as defense force for the coral polyps. (A polyp is a can-like body with a single opening leading to the stomach, aureole by a ring of tentacles.) Each polyp makes a small careworn cup, called a calyx, which it hides in when inactive or threatened. As the coral colonization grows it moldiness secrete sensitive skeletal material on top of the old. Years upon geezerhood later the accumulation of skeletal material forms a coral reef. What are the conditions necessary for the assenting of coral? Coral reefs can start in nearly twain depth of water.

They can be found as occult as 19,700 feet or properly at the waters surface, even randy above water. Corals which build reefs however, must live at depths of nice than 150 feet because corals need cheerfulness to photosynthesize in order to issue food to eat. Corals grow accelerated in clean and unhorse water. This healthy water allows sporting to reach the algae spiritedness in the coral polyps tissue. Reef building corals need meaty temperatures to survive. A good temperature is normally 20 to 28 degrees Celsius. Coral reefs grow more profusely in... If you want to get a full essay, order it on our website: Ordercustompaper.com

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