Question

explain biological magnification with help of example?

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

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Biological Magnification➫ The process by which the harmful & toxic substances the tissues of organisms at higher levels in a food chain.

❱ It is also known as Bioamplification.

❱ It occurs when pollutants taken up by organisms at the base of the food chain reach high concentrations in the bodies of animals at the top of the food chain.

➧ Harmful Effects are:-
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❱ 0rganisms at the top of the food chain are at a greater risk of damage due to biomagnification.

❱ It tend to have a higher risk of developing certain:-

♦ Cancers
♦ Liver failure
♦ Birth defects
♦ Brain damage
♦ heart disease

❱ The toxins responsible for these health problems include:-

♦ Mercury
♦ Lead
♦ Chromium
♦ Cobalt
♦ Cadmium

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