All organisms in a certain area make a *community*
        
                    
             
        
        
        
Answer:
Formation of new atoms
Explanation:
Matter cannot be created nor destroyed, but can be turned into different forms (energy). When this happens, it is referred to as a nuclear reaction. 
Chemical reactions only involve the electrons surrounding an atom and the atoms around it.
 
        
             
        
        
        
Answer:
Only about 5% of human DNA encodes protein.
Explanation:
Arrayed along the DNA strand are the genes, specific regions whose sequences carry the genetic code for making specific proteins. The genes of bacteria are tightly packed together; virtually all the DNA encodes proteins.
 
        
             
        
        
        
Answer is the k- strategy....your welcome B)