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               What 
                is an ecosystem?
                
                An 
                ecosystem is a community of living organisms (plants and animals) 
                sharing an environment. The largest ecosystems are 
                called biomes. 
                What 
                is a biome?
                
                
              A 
              biome is a very large ecosystem. You can find a map showing six 
              of the world's main biomes here. 
               
               
                The Map below shows six of the world's main biomes.
                
              
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