Biological Magnification


 
 
Concept Explanation
 

Biological Magnification

Biological Magnification:

Producers like plants and algae take in nutrients from their surroundings. Sometimes they also take in harmful chemicals along with the other nutrients. These harmful chemicals include compounds of mercury, and chemicals like DDT, which is widely used to kill mosquitoes. These chemicals cannot be broken down by plants and other organisms. So, they accumulate in their bodies. Since organisms at a higher trophic level eat many lower-level organisms, the amount of chemicals entering their bodies increases

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Sample Questions
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Question : 1

The progressive increase in the accumulation of a harmful substance in organisms at successively higher trophic levels is called _____________________ .

Right Option : A
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Question : 2

Biomagnification involves accumulation of _________________

Right Option : B
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Question : 3

Producers take harmful chemicals such as compounds of mercury, and chemicals like DDT, which is widely used to kill ___________________ .

Right Option : B
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