Question

1. Allergen
2. Immune System
3. Antibody
4. Intolerance
5. Anaphylaxis
6. Histamine
7. Antigen
8. Epinephrine


A. A severe, life-Threatening allergic reaction that requires immediate medical attention.
B. A substance that triggers an allergic reaction in some people
C. The body's defense system that protects against harmful substances and infections.
D. A protein made by the body to fight off harmful invaders like bacteria or allergens.
E. A negative reaction to a food or substance that does not involve the immune system.
F. A chemical released by the body during allergic reactions that cause symptoms like swelling and itching.
G. A substance that triggers an immune response, often found on pathogens or allergens.
H. An immune system reaction to a harmless substance, causing symptoms like sneezing or rash.

Answer 1

Matches:
1. Allergen — B
2. Immune system — C
3. Antibody — D
4. Intolerance — E
5. Anaphylaxis — A
6. Histamine — F
7. Antigen — G
8. Epinephrine — (no correct match among A–H)

Note: Definition H describes an "allergy" (an immune reaction to a harmless substance), but "allergy" is not in your term list — you have "allergen" (the trigger) instead. Epinephrine is actually the hormone/medication (adrenaline) used to treat severe allergic reactions like anaphylaxis, so it needs a different definition than H.