The child has inherited both the traits from his parents.
        
             
        
        
        
The food chains make up the food webs
        
             
        
        
        
Answer: It is the universal solvent. 
Explanation:
Because water is the universal solvent.
 
        
                    
             
        
        
        
B is the most effective and feasible, and it prevents the initial introdution of the species