Answer:
When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).
Explanation:
 
        
             
        
        
        
Http://study.com/academy/lesson/positive-negative-feedback-in-biological-systems.html 
Here's a link :)
        
             
        
        
        
Answer:
Kidney stones consist of buildup in the kidneys as a result of deposited minerals and salts that are present in urine. They can build up in the urinary tracts, and over time this can create kidney stones.
 
        
                    
             
        
        
        
Answer:
nerve cells
Explanation:
trust me i already took it