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When the body has a hypersensitivity reaction to common substances, it is known as:

A. lymphoma
B. antigen
C. allergy
D. tonsillitis

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Answer :

GinnyAnswer

Final answer:

Allergies are immune reactions that occur when the body has a hypersensitivity reaction to a harmless antigen, leading to various symptoms, ranging from mild to severe.


Explanation:

Allergies are immune reactions that result from immediate hypersensitivities where an antibody-mediated response occurs within minutes of exposure to a harmless antigen. For example, when someone with an allergy to pollen comes into contact with it, their body reacts by releasing histamine and other inflammatory chemicals, leading to symptoms ranging from mild sneezing to life-threatening reactions like anaphylactic shock.


Learn more about Allergies here:

https://brainly.com/question/38215365


CandleFly

Answer: C. Allergy

Explanation:

An allergy is when the immune system overreacts to a substance that isn't harmless. Some of the most common symptoms include:

  • Sneezing
  • Itchy, watery or runny eyes
  • Fever
  • Dry mouth

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