In 1957,Clear Lake in California was sprayed with DDT such that the water contained 0.02 ppm of DDT.After a period of time,large fish in the lake were found to have DDT levels as high as 2000 ppm.Which of the following animals would be predicted to have DDT levels 2000 ppm?

Question

In 1957,Clear Lake in California was sprayed with DDT such that the water contained 0.02 ppm of DDT.After a period of time,large fish in the lake were found to have DDT levels as high as 2000 ppm.Which of the following animals would be predicted to have DDT levels > 2000 ppm?

Quizplus · Accepted Answer

Eagles feed on large fish that have been bioaccumulating DDT from the contaminated lake. As DDT moves up the food chain, it becomes more concentrated in the tissues of the animals at the top of the food chain, such as eagles. Therefore, eagles are likely to have DDT levels above 2000 ppm. Algae and hummingbirds are not part of the food chain that bioaccumulates DDT, and small fish may have levels of DDT higher than algae and hummingbirds but are not as high on the food chain as eagles.

In 1957,Clear Lake in California Was Sprayed with DDT Such