Some toxic compounds are ingested and retained in the tissues. these pollutants pose special risks to humans and other organisms high on the food chain because of which process?

The answer is biomagnification. Bioaccumulation involves the build-up of a pollutant from the environment to an organism in a food chain. Biomagnification refers to the tendency of pollutants to concentrate as they move from one trophic level to the next. The substances become increasingly concentrated in tissues or internal organs as they move up the chain.