Wondering why can't the ans for Q6 be D-"The blue butterfly was infected by the virus that had been intended to control rabbit populations. "?
The passage clearly states that - "indirect negative consequences occurred in England when a virus introduced to control rabbits reduced the amount of open ground (because large rabbit populations reduce the ground cover), in turn reducing underground ant nests and triggering the extinction of a blue butterfly quot;
Is it because the butterfly
...
The passage clearly states that - "indirect negative consequences occurred in England when a virus introduced to control rabbits reduced the amount of open ground (because large rabbit populations reduce the ground cover), in turn reducing underground ant nests and triggering the extinction of a blue butterfly quot;
Is it because the butterfly
...
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