Not leaving the lights on when you don't need to. Also trying to conserve water
 
        
             
        
        
        
Answer:
This scenario has been discovered and studied in slime molds.
Explanation:
The green beard effect is one of the three fundamental mechanisms of kin selection. In the 1960s, W.D. Hamilton in his work on the evolution of altruism brought it into the highlight. The other two mechanisms are kin discrimination and population viscosity. Green-beard effect functions even when the altruist and her recipients are not genealogical kin. 
 
        
             
        
        
        
Answer:
<h2>Apoenzyme
</h2><h2>Cofactors</h2>
Explanation:
Conjugated enzymes also known as holoenzyme. Simple enzymes consist of only protein alone  but  the Conjugated enzymes contain protein ( this portion is called Apoenzyme) and nonprotein molecules (this portion is called cofactor). Cofactor help enzymes in their action.
Enzymes are catalyst which increase the rate of a reaction by decreasing the activation energy.
 
        
                    
             
        
        
        
Your answer is D. Because the Earth rotating on it's axis causes Day and Night
        
                    
             
        
        
        
Explanation:
members of the same species battle each other to protect their young