Ddt was a highly effective insecticide developed in the 1940s. ddt was so good at killing mosquitoes and reducing malaria that its inventor, paul muller, won the nobel prize. but in the 1960's it was discovered that ddt is taken up by algae in the water, increasing in concentration at each step of the food chain, because the pesticide remains in the fat tissues of organisms. the ecological problem that resulted from ddt use is called a) biohazard. b) bioremediation. c) biomagnification. d) food chain interruption.