there are many ways of explaining the characteristics of mineral
1. mineral are natural
2.mineral are inorganic
3. minerals are solid 
4. definite  chemical composition 
5. crystalline structure 
 
        
             
        
        
        
I believe the answer is receptor sites, but correct me if I'm wrong.
Hope this helps!
        
             
        
        
        
Answer:
b
Explanation:
some are the same while others are different (traits)