All living cells and many of the tiny organelles internal
to cells are bounded by thin membranes. These membranes are composed
primarily of phospholipids and proteins and are typically described as
phospholipid bi-layers. 
<span>Hope I helped. :) </span>
 
        
                    
             
        
        
        
Id say trick question it doesn't. Or, id say, it helps you realize how much to eat and what times you should be eating.
        
                    
             
        
        
        
The answer to this is mechanic energy.