One is pulmonary one is cellular
        
             
        
        
        
Starch (a polymer in glucose)
        
             
        
        
        
The control group outs the one that you don't change. The reason you don't change it is because you use it as a comparison with the other groups.
        
                    
             
        
        
        
Answer:
petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure.