Biology, asked by Bhushan8623, 1 year ago

A damaging immune response by the body to a substance, especially a particular food, pollen, fur, or dust, to which it has become hypersensitive is called aller

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Answered by GreenWorld
1
 single allergen exposure produces an acute reaction, which is known as an ... Similarities to aspects of immune responses to parasites or environmental allergens have also been.
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