ATP or Adenosine triphosphate is well know for it's energy source but despite it has many roles in cell. ATP is primarily used as energy source as it has higher energy in it's phospho-di-ester bonds between P and P atoms. It is hydrolyzed to ADP & AMP to give energy.
        
             
        
        
        
Lysosomes break down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell.
        
             
        
        
        
Answer:
The answer is 20 degrees then the temperature will start going to other organs
 
        
                    
             
        
        
        
Mainly to make life easier.
if one layer changes than scientists don't need to change all of their data.
it also helps keep organized.
hope this helped
ebs02
:)
        
             
        
        
        
<span>http://www.geosociety.org/science/timescale/timescl.htm
The geologic time scale is organized based by major geological events.
</span>