It is the largest ecosystem in the world of ecology in water bodies of all kinds, which is well known in the area of ocean salt water, soil water and up-down, estuaries and lagoons, mangroves and coral reefs, the deep sea and the sea-front land animals can be comparable to fresh water sources, which is the quantity of salt concentration than. The marine ecosystem, covering an area of 3 in 4 parts of the world, which can be considered as living things, plants and animals. On the other hand, we could see the food chain easily.
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