It is just called: a simple fracture. BUT when the bone does pierce the skin it's called a compound fracture. <span />
        
                    
             
        
        
        
The best answer for this is B. AaAA
        
             
        
        
        
Answer:
Sympathetic Nervous System
Explanation:
The main function of the sympathetic nervous system is to stimulate the fight or flight response. 
 
        
             
        
        
        
The most important function of osmosis is stabilising the internal environment of an organism by keeping the water and intercellular fluids levels balanced. In all living organisms, nutrients and minerals make their way to the cells because of osmosis. This obviously is essential to the survival of a cell.