A) Biological evolution
B) Bioenlargement
C) Biological fixation
D) Biomagnification.
Correct Answer: D
Solution :
Some non-biodegradable organic compounds like DDT, etc., enter the food chain when an organism eats food contaminated by them. Their concentration goes on increasing from one trophic level to the next as they are not metabolised within the body of the consumer and get stored in the fat tissues. It is called bio magnification.
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