Answer :
The insecticides could kill the owls but not the grasshopper or mice due to no resistance in owls as compared to grasshopper and owl.
How the insecticides could kill the owls?
The insecticides could kill the owls but not the grasshopper or mice because the active ingredients in that insecticide is harmful for owls while on the other hand, the grasshopper and mice are tolerant to that insecticide.
So we can conclude that the insecticides could kill the owls but not the grasshopper or mice due to no resistance in owls as compared to grasshopper and owl.
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