Q. A substance that cause an allergic reaction is called
A) Allergen
B) Pollen
C) Foreign substance
D) Dander
Explanation
An allergen is any substance (antigen), most often eaten or inhaled, that is recognized by the immune system and causes an allergic reaction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.