Question

biological magnification ​

Answer 1

Bio magnification is the accumulation of poison and toxins due to the nature of the food chain. The organisms which are above the food chain levels get affected due to lower organisms This phenomenon is called Bio-magnification.

Explanation:

Suppose fishes are contaminated and aren't healthy.This will result in fish eating birds to be poisoned too.

Answer 2

Answer:

The increase in concentration of harmful chemical substance like pastides in the body of living organism at each tropic level of a food chain is called biological magnification.