In several countries, human waste is employed as a fertilizer. If produce is grown in this kind of fertilizer, it is possible that it will be contaminated with the protozoan which causes amoebic dysentery. One method of eliminating the protest without ruining the food is to place the produce in a 5% salt solution. Describe how this would kill the protest. If you cleaned your lettuce this manner, what would happen to the lettuce cells? Explain how could you return them to normal?