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Run the Benedict's test to determine if organic NO The specimen is inorganic. The specimen is therefore not alive. Run the Biuret's test to determine if organic NO The specimen is inorganic. The specimen is therefore not alive. Conduct a Fats/Lipids test. If positive, continue. YES YES YES The specimen is organic.   The specimen is organic.   The specimen is organic.   Conduct a tetrazolium test. See if positive. NO The specimen was once alive but is now dead.   Conduct a tetrazolium test and Feulgen staining. If positive, continue. YES   Conduct a Feulgen staining. See if positive. NO The specimen was once alive but is now dead.   The specimen is alive. YES   The specimen is alive.