Part of the body's defense against pathogens in which cells of the immune system react to each kind of pathogen with a defense targeted specifically at that pathogen is called:

A lymphocyte that identifies pathogens and distinguishes one from another:

A lymphocyte that produces proteins called antibodies that help destroy pathogens:

A molecule that the immune system recognizes either as part of the body or as coming from outside the body:

A protein produced by B cells of the immune system that destroys pathogens is called:

The body's ability to destroy pathogens before they can cause disease is called:

The process by which harmless antigens are introduced into a person's body to produce active immunity is called:

A chemical that kills bacteria or slows their growth is called:

A disease caused by a living thing in the body:

A poison produced by bacteria that damages cells:

A substance used in a vaccination that consists of pathogens that have been weakened or killed but can still trigger the immune system into action:

Immunity in which antibodies are given to a person rather than produced within the person's own body like with a baby and mother.

Immunity that occurs when a person's own immune system produces antibodies in response to the presence of a pathogen like with a vaccination.

What is a function of the IMMUNE system?

Which is NOT a part of the immune system?

Which of the following is a way to spread infectious diseases?