ADH increases the permeability of the collecting duct to water, and this means water flows from the Collecting duct into the blood to decrease the volume of the fluid in the collecting duct.
ADH is a hormone that increases permeability to water in the collecting ducts and therefore increases water reabsorption from the urine. This decreases the volume of water in the urine.
ADH travels in the bloodstream to its target organ, the kidneys. It causes the kidney tubules to become more permeable . This means more water can leave the kidney tubule to be reabsorbed back into the blood during selective reabsorption.
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1. During inhalation the diaphragm contracts or moves down, what happen to the chest
cavity?
a. Expand
        
             
        
        
        
The smallest living unit is actually a cell. An organelle is an organ inside of a cell. An organelle would not be considered alive because it can not survive without the other organelles. Whereas, a cell can survive without other cells.
        
                    
             
        
        
        
Oxygen plays an important/ key role in both systems. 
        
             
        
        
        
Answer:
Since the nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus.
Explanation: