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Friday, December 12, 2014

Coral Reef and the Great Barrier Reef

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Rock like spectacular structures in seas and oceans that are made of limestone, are called as coral reefs. The limestone inside the sea is secreted by millions of tiny animals called as coral polyps.

A Coral Polyp has a sac like soft body with a single opening which remains surrounded by tentacles. The lime stone secreted by a coral polyp accumulates to form high ridges called as reefs. 

In some areas of an ocean, these reefs grow high enough to take the shape of a barrier. Example of such an oceanic barrier which is visible even from the space is called as the Great Barrier Reef. 

The Great Barrier Reef stretches itself 1,200 miles off of the east of Queensland; Australia. This is the largest marine preserve in the world. It harbours about 500 species of beautifully coloured corals; 4000 kinds of shellfish, and 1,500 types of other fish species; besides vast varieties of algae and millions of varieties of consumers. As coral reefs are very rich in animal life, these are called as Rain Forests of the sea.

The Great Barrier Reef

A Coral Reef

Key Words:coral,coral polyp,Great Barrier Reef

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