The Immune System

Multiple Choice

The immune system

A) Must recognize the identity of a foreign cell or substance in order to inactivate it
B) Must recognize a foreign cell or substance as foreign in order to inactivate it
C) Can recognize and destroy "self" cells that have been changed or damaged
D) Both must recognize the identity of a foreign cell or substance in order to inactivate it and can recognize and destroy "self" cells that have been changed or damaged are correct
E) Both must recognize a foreign cell or substance as foreign in order to inactivate it and can recognize and destroy "self" cells that have been changed or damaged are correct