carbohydrate are the largest organic molecules
 
        
             
        
        
        
It's known as severity. 
The fact that her pain is on the scale between 1-10 refers to the severity of her pain.
Hope that helped ^U^
        
             
        
        
        
neurotransmitters is the answer
 
        
             
        
        
        
Answer: D. The kinds of organisms that lived there long ago.
Explanation: Finding fossils in an area can help us learn about the kinds of organisms that lived there long ago. The fossil leave traces behind about what type of animal lived there and who the animal was.