Answer:
emphysema : a chronic, irreversible disease of the lungs characterized by abnormal enlargement of air spaces in the lungs accompanied by destruction of the tissue lining the walls of the air spaces.
Explanation:
this is its name and definition
 
        
                    
             
        
        
        
It’s c a producer a someone who produces a product so a farmer who raise corn, produces corn
        
             
        
        
        
A is the right answer because it is.
        
                    
             
        
        
        
Answer:
Bacteria cells have no nucleus.