The space enclosed by the inner membrane is called the matrix in mitochondria and the stroma in chloroplasts. Both spaces are filled with a fluid containing a rich mixture of metabolic products, enzymes, and ions.
 
        
                    
             
        
        
        
3) there are more consumers than producers
Hopefully this helped and good luck.
 
        
             
        
        
        
Answer:
Hypotonic
Explanation:
there is less concentration in the blood compared to the brain