Question

Explain biological magnification.

Answer 1

The process of increase of concentration of harmful chemicals like pesticides of concentration from first trophic level to the last trophic level in a food chain is called biological magnification. 

In the food chain, 

Grass ----> Grasshopper ----> Frog ----> Snake ---->Peacock 

Since peacock occurs at the highest trophic level (on the extreme right), therefore, peacock will have the maximum concentration of harmful chemicals in its body

Answer 2

Hello There,

-Progressive accumulation of chemicals at each trophic level is called        biological magnification  .

- Higher the trophic level higher the concentration  .

- The chemicals are not degradable hence they get accumulated in higher trophic levels .

-As human beings occupy the top level in any food chain the maximum concentration of chemical enters human body.  

Hope it helps....