Oxygen enters the lungs, then passes through the alveoli and into the blood.
        
                    
             
        
        
        
Answer:
D. call your doctor to you be late an appointment after I work
Explanation:
Firstly,to everyone you health should be your upmost paurity. Secondly, no matter how dedicated you are to your boss ,to him it is his duty for all his staff are well and ready for work or it might affect his reputation towards his work and business associate
 
        
             
        
        
        
the nuteient that make Up our body is the water
 
        
                    
             
        
        
        
The answer would be : 10.
Hope this helps !
Photon
        
             
        
        
        
Red Blood Cells i believe are not part of the immune system. They carry oxygenated blood to the organs of the body