There are numerous diverse types of ecosystems in existence. The tundra, marine ecosystems such as a coral reef and the rainforest are just three examples of more than twenty different ecosystems that we are aware of and interact with on a regular basis. Your garden and surrounding area is an ecosystem and by its very definition, even the busiest city is a bionetwork. One area of the ecosystem that is of worldwide concern today is that caused by deforestation due to the sudden and rapid population growth.

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