The adaptive immune system is capable of mounting specific responses to particular microorganisms because
A. lymphocytes are able to change their antigen specificity as required to fight infection.
B. stem cells determine which type of B and T cells to make.
C. the body contains an enormous diversity of lymphocytes, each with the ability to respond to a different antigen.
D. stem cells make different antigen receptors depending on the invading microorganism.
Answer:C
The adaptive immune system is capable of mounting specific responses to particular microorganisms because
A. lymphocytes are able to change their antigen specificity as required to fight infection. B. stem cells determine which type of B and T cells to make. C. the body contains an enormous diversity of lymphocytes, each with the ability to respond to a different antigen. D. stem cells make different antigen receptors depending on the invading microorganism.