... different from biotic factors in that they don't involve other organisms. This means that anything, which affects an organism in its ecosystem that is not living, is classed as an abiotic factor. Popular examples of abiotic factors include the climate and water currents. It has to be accepted that different organisms will respond in different ways to the same abiotic factor. It will be important to remember this throughout the course of the investigation. Now that these key terms have been clarified the title can be fully understood and a scientific investigation can be planned. A good starting point is to decide upon the abiotic factor and freshwater organism that will be investigated. Hence it is important to construct a list of possible biotic factors, this essentially will be a list of any organisms that may be found in the studied ecosystem. In a similar fashion a list of abiotic factors ...

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