The answer is letter B has commercial uses such as Alcohol production and bread making. 
        
                    
             
        
        
        
Answer:
It was established on June 18 of 1981.
 
        
             
        
        
        
She should make observations next.
If she doesnt make observations, it would be difficult to form a hypothesis and design an experiment, the result will more likely to be inaccurate too.
        
                    
             
        
        
        
The most abundant protein is dead epidermal structures such as hair and melanin.