Answer:
An allergic reaction
Explanation:
An allergic reaction occurs when our immune system misinterprets a harmless substance into a harmful antigen and initiate an over-expressed immune response against it. Some of these allergic substances are pollen, molds, insect stings, etc.
These allergens trigger the production of IgE antibodies in the body which interact with different cell and initiate the release of chemicals like histamine that cause symptoms of allergic reaction.
It can affect the nose, skin, lung, stomach lining, etc. Therefore the correct answer is an allergic reaction.
 
        
             
        
        
        
Answer:
I'm pretty sure it B, hope I helped
 
        
             
        
        
        
Answer:
The answer is mitochondira of heterotoph cells
 Explanation:
 
        
             
        
        
        
When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher power objective.