Plastic tupperware containers
        
             
        
        
        
The correct answer would be A. seal as paramecium, bacterium, and amoeba are all single-celled organisms. Thus, they cannot be an organism with tissues.
 
        
                    
             
        
        
        
I believe the answer is proteins. hope this helped! :)
        
             
        
        
        
C. Because pure water might cause the patients blood cells to burst- because water will move in to the cells down the concentration gradient by osmosis