I wish i knew the answer to this.
        
             
        
        
        
The cerebellum regulates water and balance
The Hypothalamus regulates sleep, body temperature and appetite.
hope this helps 
        
             
        
        
        
Answer: The cell is the basic structural and functional unit of living organisms
Explanation:
 
        
             
        
        
        
When someone is lactose intolerant, it means its intestine cannot absorb lactose, which will stay in the lumen and be consumed by intestinal bacteria and produced gases, that's why intolerant lactose people have flatulence and abdominal pain while eating food with lactose in it.
Let's go back to the question, before being consumed, lactose in the lumen intestine will attract water from the enterocytes to its side by oncotic pressure.
Do not confound oncotic pressure (which concerns macromolecules like sugar or proteins) and osmotic pressure (which concern micromolecules like small ions (sodium potassium and chloride...)).