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Biotic and Abiotic Factors

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Published on Jul 11, 2011

020 - Biotic and Abiotic Factors

Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms, predator-prey relationships, and food webs are given as illustrative examples.

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All of the images are licensed under creative commons and public domain licensing:
"File:American Beaver.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Ame....
"File:Biofilm.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Bio....
"File:Canadian Lynx by Keith Williams.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Can....
"File:Fuzzy Freddy.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Fuz....
"File:Mandibulartori02-04-06.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Man....
"File:Mauna Loa Carbon Dioxide Apr2013.svg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Mau....
"File:OPAL TERRACE with Elks.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:OPA....
"File:Reintroduced Wolves Being Carried to Acclimation Pens, Yellowstone National Park, January, 1995.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Rei....
"File:Salix Alba Leaves.jpg." Wikipedia, the Free Encyclopedia. Accessed November 18, 2013. http://en.wikipedia.org/wiki/File:Sal....
"File:Snowbowlaspens.jpg." Wikipedia, the Free Encyclopedia, November 17, 2013. http://en.wikipedia.org/w/index.php?t....

Intro Music Atribution
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Artist: CosmicD
Link to sound: http://www.freesound.org/people/Cosmi...
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