Answer:  Insulin is a hormone, which is secreted by the pancreas to regulate the sugar levels in the bloodstream.
Explanation:
Insulin is a protein hormone if take orally, will get digested in the digestive tract, it will not be able to affect the target site of action.
Insulin gets denatured in the digestive tract. Thus it will not be able to control the blood sugar levels.
Nancy has taken the insulin dose orally, the insulin will get denatured in the digestive system, it will not function and Nancy will remain hyperglycemic after the consumption. 
 
        
             
        
        
        
Answer:
The organism lives and replicates despite RNase and DNase treatment, but the organism dies when treated with protease
Explanation:
 
        
             
        
        
        
Air mass is a large body of air that exhibits uniform temperature and moisture characteristics and helps to determine the weather within an area. Warm air masses tend to form over oceans in warm-temperature regions of the tropics and sub-tropics, while cold air masses tend to form over land in cold-weather regions nearer the poles. The cold air masses that form at the poles move toward the equator, while the warm air masses that form at the equator move toward the poles. These air masses can undergo gradual, but significant, changes as they pass over warmer or colder land surfaces encountering different types of air. These boundary lines are called front.
Brainliest would be appreciated.
 
        
             
        
        
        
Answer:
A. Oxygen 
Explanation:
During cellular respiration the cell uses oxygen to break down sugar. When sugar breaks down it produces energy in which your body needs. Blood picks up oxygen and releses carbon dioxide into your lungs. 
Hope this helps!!