Antigens are best defined as ______.
A) foreign substances that enter the body
B) specialized antibodies that help fight viruses
C) specialized antibodies that help fight bacteria
D) a secondary system of white blood cells

Question

Quizplus · Accepted Answer

Antigens are best defined as foreign substances that enter the body, which can include things like bacteria, viruses, and other pathogens. They are recognized by the immune system, leading to an immune response.

Antigens Are Best Defined as ______