Why earthworm dies coming with contact with common salt?
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Earth worms are unable to tolerate high ionic strength, because high salt concentrations destroy their sensitive skin, and the earthworms cannot have control over the osmotic regulation. In addition, the neurosecretory cells in earthworms play a vital role in water balance as well as ionic and osmotic regulation. Basically, when salt comes in contact with salt, the water inside the worm is sucked out because of the osmosis occuring because of the salt. An their skin dries and they die due to dehydration.
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