<em>Answer is B. The fossils in the lower layers are older than the fossils in the upper layers.</em>
 
        
                    
             
        
        
        
Insulin undergoes extensive posttranslational modification along the production pathway.
        
             
        
        
        
Inkjet printer, I believe.
        
             
        
        
        
Answer:
Domain
Explanation:
(in order from most inclusive to least inclusive): Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species, and Strain.
 
        
             
        
        
        
Answer:
it stores and controls water in the cell
Explanation: