Environmental Research Foundation . . P.O. Box 5036, Annapolis, MD 21403 . .
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To subscribe, E-mail the words . . It is because different people emphasize different aspects of the problem. On the other hand, a biologist looking at the same machine sees something completely different. A biologist is concerned about keeping strange chemicals out of the natural environment because such things tend to accumulate and concentrate as they travel through the food chain. Creatures that live at the top of the food chain become contaminated the most, and, in general, humans eat high on the food chain.