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A rat, mosquito, earthworm and frog were kept in airtight boxes separately, in such a manner that only their head was outside, but they were fed with the

food, according to their food habit. After sometime, it was found that one of them died. WHICH animal died and WHY?


Frog will die because it takes respiration through its skin 
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the answer is earthworm because it is used to living in soil and also it takes its respiration through its skin unlike rat,mosquito and frog(frog can take breath through skin and lungs)
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