An allergen is a type of
single cell microorganisms occurs over a wide range melanin content protein foreign to the body. specialized cells a small molecule inherited antigens + antibody chemical messengers
A B C D E F G H
Antigens are proteins foreign to the body.
Proteins foreign to the body that cause allergies are called allergens.
An allergen is a type of (A) single cell microorganisms (B) occurs over a wide range (C) melanin content (D) protein foreign to the body. (E) specialized cells (F) a small molecule (G) inherited antigens + antibody (H) chemical messengers