Answered

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Allergies are caused by:
Select one:
O a. harmless substances from outside your body
O
O b.
b. harmful substances from inside your body
O c. harmless substances from inside your body
O d. harmful substances from outside your body

Sagot :

GinnyAnsweridn

Final answer:

Allergies stem from the immune system's overreaction to harmless substances known as allergens.


Explanation:

Allergies are caused by the immune system's inflammatory response to harmless antigens known as allergens. These allergens can be harmless substances from the outside environment, like pollen or dust mites, that trigger allergic reactions in sensitized individuals.


Learn more about Allergies here:

https://brainly.com/question/38215365


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