Insecticide resistance is the development by insects of resistance to insecticides. It is the ability an insect can either get naturally or by mutations to withstand the effects of insecticides aka becoming resistant.
Cells are the most simple level of organization, as tissues contain cells, organs contain tissues and systems contain organs, so R would be your answer.
They can all make you ill and be dangerous for the body
Going back to naming and classifying all of the living organisms, let us take a look at what can be the difference between<span> a specie and </span>population<span>. ... It is defined as the organisms capable of sexual intercourse and producing offspring which are fertile and able to produce as well
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