Question

Any foreign substance invading body and capable of stimulating an immune response is ____________.

Options

• Antibody

• Antivenom

• Antigen

• Antibiotic

Answer 1

Any foreign substance invading body and capable of stimulating an immune response is Antigen.

Explanation:

Antigen is a foreign molecule that activates the immune system. Antibody is a molecule that the body produces in response to an antigen.