Question

Why do toxic chemicals accumulate at higher trophic level?

Answer 1

Answer:

Bioaccumulation, is the gradual accumulation of substances, such as pesticides, or other chemicals in an organism. Bioaccumulation occurs when an organism absorbs a substance at a rate faster

Answer 2

Answer:

It occurs when the toxic burden of a large number of organism at a lower trophic level is accumulated and concentrated by a predator in a higher trophic level. ... The concentration of some chemicals in the fatty tissue of top predators can be millions of times higher than the concentration in the open water.