A) water
B) planktons
C) small fishes
D) birds
Correct Answer: A
Solution :
Biological magnification is the phenomenon where concentration of non-degradable pollutants gradually increases in oncoming organisms of higher trophic levels, f. e., from herbivores to carnivores. Thus, if a water body is contaminated with a toxicant, its bio magnification will be more marked in birds which eat small fishes.
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