Answer:
My guess would be H₂O/ water, since osmosis is a form of passive transport and I can't see the model the question references. Gases like O₂/ oxygen, CO₂/ carbon dioxide, and simple sugars like glucose can also pass through a cell membrane with passive transport though.
 
        
             
        
        
        
Answer:
It is a mixture.
Explanation:
Car battery is mixture because it contain sulfuric acid and water. A mixture is a substance that contain two or more substances which are mixed physically or physically combined and are not chemically combined but can also be separated into the different substance.
 
        
             
        
        
        
The answer is A
Because that would be the correct angle at the degree point which is pointing toward the top right
        
                    
             
        
        
        
Answer: Oxygen Isotopes!
Explanation: I just took the quiz and I got it correct!
 
        
             
        
        
        
Answer:
I believe the cell is a plant cell
Hope this helped :)