ICSE BoardEnglish MediumSTD 7BIOLOGYAllergy2 Marks
Question
Define the term “allergy”.
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Answer
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes no adverse effects to most people. These diseases include hay fever, dermatitis, asthma, food allergies, etc.
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