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…showed last 75 words of 1546 total…alternatives and they all failed (Roush 2). Until there is a sure-fire way to replace animal testing, The only humain option is to continue with it. Alternative methods are incapable of replacing all animal testing because of this fact: Computers and cell cultures cannot completely mimic the complex biochemical interactions that occur in a human. The use of animals in laboratory experiments must continue to ensure the health, and lives of every organism on the planet.