NURSING ANM AND GNM

Detailed explanation-1: -This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain.

Detailed explanation-2: -Bioaccumulation occurs when toxins build up-or accumulate-in a food chain. The animals at the top of the food chain are affected most severely.

Detailed explanation-3: -The toxins build up in their tissues because they are absorbed from the water at a rate faster than they can be metabolized. Biomagnification occurs when slightly larger organisms called zooplankton feed upon the contaminated phytoplankton and in turn absorb POPs into their own tissues at a higher concentration.