Coral only accounted for 1 percent of the Earth's surface, but they have the complex functions and needed in the ecosystem of Earth. Most, coral reefs have the structure and the relationship depends on the micro-algae, zooxanthellae. The energy of the coral was upgraded thanks to 90% capacity in support of this algae. They create the colourful, organic, and other energy. However, the bad conditions did affect the function of the tissue of corals from this algae, causing the corals gradually lost color and they slowly reveal the white mist of mudskipper indentations.
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