Biology · Oct / Nov 2020 · Paper 11 · Question 32
5090Effects of humans on ecosystems
What would be an undesirable feature in an insecticide?
- AIt becomes more concentrated at each stage in the food web.
- BIt breaks down within a few months.
- CIt destroys one particular insect only.
- DIt destroys the immature forms of an insect.
As printed in the paper
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Correct answer: A. It becomes more concentrated at each stage in the food web.
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