Quiz: Overview of the Immune System
Question 1 of 3  

The immune system is designed to defend the body against foreign or dangerous invaders. To defend the body against these invaders, the immune system must be able to distinguish between which of the following?

  • A.

    Bacteria and cancer

  • B.

    Bacteria and fungi

  • C.

    Self and nonself

  • D.

    Transplants and cancer 

Am I correct?