Biological Magnification

Biological Magnification

The picture above depicts the lake behind my house, which is a living ecosystem. In biological magnification, a substance, or chemical increases in concentration in an ecosystem. These substances increase in the tissues an organs of organisms further up the food chain, thus animals at the top of the food chain suffer more than the species below them. An example of this would be if pesticides were used on the backyards of these homes, and then the chemicals run off into the lake. In the lake, the pesticides are taken in by the fish, which are soon eaten by the birds on the lake. The pesticides moves slowly up the food chain, but in higher doses in each step, so by the time the pesticides get to the top of the food chain, it is doing much more damage then expected.


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