explain Biological magnification of harmful chemicals
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The increase in the concentration of harmful substances, such as pesticides, in the body of living organisms at each level of a food chain is called biological magnification.
Chemical substances such as pesticides are sprayed over crop plants to protect them from pests and diseases. When herbivorous animals eat plant food, these poisonous chemical pesticides go into their bodies. Man, being an omnivore, eats plant food as well as the meat of herbivores. Thus, the pesticides present in plant food and herbivores get transferred to man's body through food. Pesticides are non-biodegradable chemicals, so they get accumulated at each trophic level. Since humans occupy the top level in any food chain, the maximum amount of harmful chemical pesticides gets accumulated in our bodies, damaging our health gradually.
The following food chain explains how biological magnification of harmful chemicals can occur. Plants →Herbivore → Man
Chemical substances such as pesticides are sprayed over crop plants to protect them from pests and diseases. When herbivorous animals eat plant food, these poisonous chemical pesticides go into their bodies. Man, being an omnivore, eats plant food as well as the meat of herbivores. Thus, the pesticides present in plant food and herbivores get transferred to man's body through food. Pesticides are non-biodegradable chemicals, so they get accumulated at each trophic level. Since humans occupy the top level in any food chain, the maximum amount of harmful chemical pesticides gets accumulated in our bodies, damaging our health gradually.
The following food chain explains how biological magnification of harmful chemicals can occur. Plants →Herbivore → Man
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> The process of increase 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.
Ans:-
> The process of increase 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.
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