Fill in the missing words (8 marks)    Allergies  Allergies…

Fill in the missing words (8 marks)    Allergies  Allergies are the most widespread immune problem. They are a signal that the immune system is  by mistake. Most allergic reactions generally make the majority of people . They are common and usually not very .    Correctly spell the word for a more serious allergic reaction that affects the whole body:  reaction    To prevent allergies, the immune system can be built up by introducing small of the allergen to the body to make us less to them and to not to react too strongly.