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Biology 14 Online
OpenStudy (anonymous):

What are some physical limits of an ecosystem such as a river ? Does it include bed rock, algae, things like that ?

OpenStudy (alphadxg):

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. The boundaries are not fixed in any objective way, although sometimes they seem obvious, as with the shoreline of a small pond. Usually the boundaries of an ecosystem are chosen for practical reasons having to do with the goals of the particular study.

OpenStudy (anonymous):

ohkay thank you !

OpenStudy (alphadxg):

No problem :)

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