A water molecule (H2O) will have a slightly positive side, and a slightly negative side. The oxygen side of water is the one that is negative, while hydrogen side tends to be more positive. When a molecule has a half negative and half positive side like water does, it is called a polar molecule. :D 
        
             
        
        
        
Answer:
The independent variable is the projection of yhe light rays, and the dependent variable is the refraction and bending
 
        
                    
             
        
        
        
Answer:
cytoskeleton
Explanation:
cytoskeleton is a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence.
 
        
             
        
        
        
Line breeding is an example if you’re looking for a genetic answer