They come from the atmosphere, since plants use carbon dioxide to produce carbohydrates :) 
        
             
        
        
        
Created the Grand Canyon National Game Preserve and killed the deers predators.
        
             
        
        
        
Answer:
b
Explanation:
because they are held together by ester bonds not peptide bond :) 
 
        
             
        
        
        
Pepsin digests potato because it mainly contains starch