<h2>Lysoso<em>mes.Lysosomes can be thought of as the waste management system of a cell. These are the organelles that break down dead cell components, food, and foreign matter, such as viruses and bacteria.</em></h2>
        
             
        
        
        
Answer:
Because the mass contributed by electrons is dwarfed by the nuclear contribution.  There exists three orders of magnitude difference. Electronic mass can be ignored to a first approximation.
Explanation:  
 
        
                    
             
        
        
        
Answer:
C
Explanation:
It must be prescribed by a doctor