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Biotic and Abiotic Factors

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.
Length: 10:06


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