Biggest Structure made by living organisms
Great Barrier Reef Great Barrier Reef if the only and the biggest structure made by living organisms that can be seen from outer space. It consists of about 3000 individual reefs around 900 islands stretched for over 2600 kilometers. This reef structure is composed of billions of tiny organisms known as coral polyps. Apart from these a wide variety of other aquatic animals are also supported by this reef system as it provides them food, and place to live and also provide the bigger animals, better chance to hunt.it is situated in coral sea, in the off coast of Queensland, Australia. Significance Great Barrier Reef is a well noted site and has been declared as World Heritage Site in 1981. Queensland National Trust also named it as state Icon of Queensland and is one of the seven natural wonders of the world. In Whitsunday islands, Great Barrier Reef plays a major role in economy as it attracts large masses of tourists. Environmental values Sea plants that grow in reef sy...