Hi !
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<em>What is the JCAHO?</em>
<em>Answer:</em>
JCAHO =  joint commission in united states 
 
        
                    
             
        
        
        
The smallest bone in your body is called stapes, that is found in the ear. 
        
             
        
        
        
The answer would be 2 placenta. A thin walled sac that surrounds the fetus during pregnancy. The sac is filled with amniotic fluid(liquid made by fetus) and the amnion(the membrane that covers the fetal side of the placenta)
        
             
        
        
        
Answer:
the body would usually fight both the vaccine (while the vaccine is also fighting the virus)and bacteria in body