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  • (a) A food chain generally has three or four trophic levels. Explain. (b) What is biological magnification ? Explain.       <div style="float:left; width:3%

(a) A food chain generally has three or four trophic levels. Explain.

(b) What is biological magnification ? Explain.

 

 

 

 
 
 
 
 

Answers (1)

(a) The food chain generally of three or four trophic levels because only 10% of energy is transferred from one trophic level to next trophic levels, so, very little usable energy remains after four trophic levels.

(b) Biological magnification or Biomagnification is the process of increase in the concentration of toxic and harmful substances within each successive level in the food chain.

Gross\rightarrow crasshopper\rightarrow frog\rightarrow snake\rightarrow bird

The bird will have the maximum concentration of harmful substances in its body.

Posted by

Sumit Saini

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