I think its 4 hope that helped 
        
             
        
        
        
<span>Pancreas. The pancreas does so by having beta cells that secrete a certain amount of insulin after consumption of food. There are then delta cells that regulate the beta cells, and then gamma cells that in turn regulate the delta cells.</span>
        
                    
             
        
        
        
Answer and Explanation:
When a cell is freezed, it cytoplasm-which is mostly water- is frozen and its volume expands. In consequence, pressure inside the cell increases and that causes damage to the outer wall. 
The same occur in an unopened softdrink when it freezes. The volume inside the container increases and the pressure increases. If this volume increment is not considered before freezing the liquid, it could cause the container damage or breaking.
 
        
             
        
        
        
You should not, EVER, cut the renal artery. Doing so not only means that blood is no longer going to that kidney, but just as well, blood can't be filtered.
        
             
        
        
        
Mouth or nose = both openings and cavities
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Pharynx = tubelike passageway on top of the throat
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Larynx = a hollow muscular organ also called the voice box
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Trachea = a large membranous tube
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Bronchi = the major air passages of the lungs
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Lungs = the main organs of the respiratory system
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Bronchioles = any of the minute branches into which a bronchus divides
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Alveoli = microscopic pouches inside lungs where gas exchange occurs
NOTE: Please mark this as brainliest! I truly apologize if there were any mistakes. Hope this helped! :)