A substance that triggers an allergic response is called a(n) ________.

Allergic Response

An immune system reaction that occurs when the body's defense mechanisms overact to a normally harmless substance.

Substance

A form of matter with distinct properties and composition, such as a chemical element or compound.

Understand the definitions and roles of substances and cells involved in allergic responses and immune reactions.

Verified Answer

Final Answer :

allergen

Learning Objectives

Understand the definitions and roles of substances and cells involved in allergic responses and immune reactions.