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smartguy75555
And ecosystem is a chain of organisms keeping each other in check such as a coral reef food chain. The planktons eaten by a small fish The small fish is eaten by the large fish and the large fish is eaten by the humans or sharks. A communtity on the other hand is just a population of two or more diffferent species Hope this helps
Nirvana2346
A community needs a group of different species and an ecosystem is when we add in the abiotic factors, or non-living things in an environment