The pure food and drug act of 1906 is a revolutionary legislation for America consumers no longer had to put up with cheap, Misbranded foods and medications. Companies producing food and drugs could no longer make “ false claims” or mislabel their products and deceive the public.
        
             
        
        
        
I think it is chromosomal abnormalities
        
                    
             
        
        
        
Most patient are concern about the doctors’
reliability upon knowing the difference between a MD and DO. It may cause
confusion between doctor of medicine (MD) and doctors of osteopathic medicine (DO) in terms
of giving the most appropriate treatment because the approach in the treatment
is different in both practice.
 
        
             
        
        
        
Stereotypes are based on biological sex and how they identify themselves.
        
             
        
        
        
Answer:
An Experiment
Explanation:
To understand and explain the natural events, the scientific method is followed which refers to the systematic approach to understand the work. A scientific experiment is one of the step of the scientific method which is used to test the predicted statement which could explain the event.
The experiment includes the observations related to the predicted hypothesis and to answer the scientific question. The observation can produce facts which could prove or disprove the hypothesis.
Thus, an experiment is the correct answer.