Answers

2016-02-25T23:21:55+08:00
An ecosystem consists of the biological community that occurs in some locale, and the physical and chemical factors that make up its non-living or abiotic environment. There are many examples of ecosystems -- a pond, a forest, an estuary, a grassland,etc
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2016-02-27T08:55:09+08:00
A pond, a forest, an estuary, a grassland
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