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Biomagnification is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.

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Important Questions on Our Environment

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Science>Biology>Our Environment>Environmental Issues
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Grass → Deer → Lion
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The following diagram shows a simple version of energy flow through the food web. What happens to energy having the decomposers?

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EASY
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At which trophic level, would the biological magnification of DDT would be highest. 

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HARD
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The gas accelerating the ozone dissociation in atmosphere 
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Science>Biology>Our Environment>Environmental Issues
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Science>Biology>Our Environment>Environmental Issues
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