The answer is penicillin
Rheumatic fever is a disease that caused by Group A streptococcus infection. The bacteria has component that similar to the heart valve cells, makes the immune cell attack it. The drug of choice for this infection is penicillin G benzathine injection. It is one of penicillin family drug that has high prevalence of allergy reaction, so you must be aware.
 
        
             
        
        
        
what are the choices
Explanation:
photosynthesis is a way that plants make their own food. 
 
        
             
        
        
        
<span>It is a way to camouflage the squirrel in a changing habitat.</span>
        
                    
             
        
        
        
Answer:
Biomass
Explanation:
It is the right answer according to biology.
 
        
             
        
        
        
Water vapor is water in a gas state instead of a liquid or a solid.