Answer:
Perform different functions for the organisms
Explanation:
1-Stem cells can differentiate into other specialized cells.
2-Specialized cells are more complex. 
3-Specialized cells usually do not reproduce
 
        
             
        
        
        
He sailed on the HMS Beagle to serve as a naturalist.
        
                    
             
        
        
        
A single gene could be inserted into a plant's genome, enabling specific traits to be expressed easily. Scientists have identified genes for two enzymes needed to make pro-vitamin A. One of these genes comes from corn.
        
                    
             
        
        
        
A primary consumer because the mouse eats grains or producers