An example of biomagnification would be:
A. Chemicals in effluent that is dumped into local rivers that empty into a larger bay.
B. Mercury is transformed into an organic mercury compound which is highly toxic
C. Heavy metals from different sources are all dumped into the same lake, resulting in toxic concentrations.
D. Low concentrations of a chemical are absorbed by algae and retained in fish at much higher concentrations.
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These are the abiotic factor or biotic factors that restricts the numbers, reproduction, or distribution of organisms.
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An example of biomagnification would be:
A. Chemicals in effluent that is dumped into local rivers...
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