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Ddt was sprayed in a long island salt marsh over a period of years for mosquito control. a portion of the food web is as follows:algae -> shrimp-> american eel -> atlantic needlefish -> ring-billed gullin which organism would biological magnification be most evident?

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In biomagnification, the highest levels of accumulation are found at the successively highest trophic levels of a food chain/web. So, in this case, ring-billed gullin will be having the highest bioaccumulated levels of the DDT. DDT got concentrated as it moved to higher levels, so ring-billed gullin would be the most affected one. 

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