if an organelle stops working  the cell will no longer be able to excrete proteins or other molecules.
 
        
             
        
        
        
Answer:
False
Explanation:
Intrapulmonary pressure, is known referred to as alveolar pressure. It is the pressure within the lung. When the glottis is not closed, the alveolar pressure is seen to be equal to the pleural pressure (the negative suction pressure that occurs between the thin layers of pleura) since no air is flowing into the lungs.
It is important to note that rapid and larger changes in lung volume will lead to a larger, positive intrapulmonic pressure changes.
 
        
             
        
        
        
Answer:
Anaphase
Explanation:
During anaphase sister chromatids separate and the centromeres divide.
 
        
                    
             
        
        
        
The correct formula for solving this question is: VC = IRV + ERV + TV, where VC is vital capacity, IRV is inspiratory reserve volume, ERV is expiratory reserve volume and TV is tidal volume. From the given information, TV =500, ERV =1200 and the standard IRV for male is 3100ml, therefore, 
VC=  3100 + 1200 + 500 = 4800ml.