Question

State whether the following statements are true or false.

(i) The phenomenon by which certain pollutants accumulate in the body tissues in increasing concentration is called eutrophication.

Answer 1

False.

The phenomenon by which certain pollutants accumulate in the body tissues in increasing concentration is called biomagnification.

• Biomagnification/biological magnification refers to increase in concentration of the toxicant at successive trophic levels.
• This occurs when a toxic substance accumulated by an organism cannot be metabolised or excreted and is thus passed on to the next higher trophic levels.