In what order will the following amino acids be eluted from a column of Dowex 50 ion exchange resin is used instead by a buffer at pH 6: arginine, tryptophan, aspartic acid,
histidine, and leucine? Would the order change if it was Dowex 1?

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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