Question

A harmful chemical enters a food chain comprising of rat, wheat plants,
snake and eagle. Which one of these organisms will have maximum concentration
of harmful chemicals in its body ? Why?​

Answer 1

Answer:

The food chain will be Plants→Mice→Snakes→Hawks 

The Hawk will have maximum concentration of harmful chemicals in its body as the accumulation of harmful chemicals which are non-biodegradable increases at every trophic level. This phenomenon of increase in concentration of harmful chemicals at every trophic level is called bio-magnification. Since hawks are placed at top of this food chain so it will have maximum concentration of the harmful chemicals in its body.