Your answer is Adenosine diphosphate (ADP)
        
             
        
        
        
In classical mechanics, a particle is in mechanical equilibrium if the net force on that particle is zero. ... In terms of momentum, a system is in equilibrium if the momentum of its parts is all constant. In terms of velocity, the system is in equilibrium if velocity is constant.
 
        
             
        
        
        
A psychologist would say that she enjoys the game because it acts as a reward for her. When she wins or is good at a game this means she is receiving different signals which act in a rewarding way towards her. 
        
             
        
        
        
<span>the answer will have to be the second choice cause it seems more correct</span>
        
             
        
        
        
Answer:
I would select 
A and C
Explanation:
Biotic factors are those of which are living