In 1996,Michael Behe argued that the bacterial flagellum (a rotating filament-like structure that enables a bacterium to swim)could not have evolved by natural selection,since it is made up of many integrated parts (proteins),and the absence of any one of those parts would make the entire structure useless.Outline a set of experiments on flagella that would test the alternate hypothesis that flagella evolved through exaptation at the molecular level.
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