The answer is A. Excretion I hope this helps 
        
             
        
        
        
1 batería cell is the answer .
        
             
        
        
        
Water can take 8-9 days
rubbing alcohol can take less then 12 hours
        
                    
             
        
        
        
Answer:ionic bond
Explanation: Ionic bonds form when electrons are transferred, covalent bonds form when electrons are shared. polar covalent bonds form when electrons are shared unequally (basically).