Which of the Following Indicates That the Immune System Has

question 88

Multiple Choice

Which of the following indicates that the immune system has achieved versatility?

• A) Millions of NK cells are produced to ensure efficient immune surveillance.
• B) Lymphocytes, which are sensitive to an antigen, undergo repeated cell divisions.
• C) Production of many normal B cells and T cells, which will attack "self" antigens, occurs.
• D) Lymphocyte cell divisions produce two cell types: one group, which will attack specific antigens, and another group, which will remain inactive until exposed to the same antigen later.
• E) Millions of different lymphocyte populations are produced, each with different antigen receptors.