Bioaccumulation
Lesson 9 / 9
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Lesson outcome
I can describe how toxic materials can accumulate and affect organisms in a food chain.
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Some toxic substances are persistent (they stay in the environment and do not break down).
If consumed, persistent toxic substances can be passed up the food chain.
The bioaccumulation of toxic substances can cause damage to organisms, particularly top predators.
The use of pesticides in farming can cause bioaccumulation.
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