Exam 14: The Lymphatic System and Immunity

The clumping of red blood cells,which occurs when incompatible blood types are mixed,is an example of

________ exists when the immune system does not respond to normal tissues and their antigens.

Figure 14-1 Typical Antibody Molecule and Typical Antigen Use Figure 14-1 to identify the labeled part. -What does label E represent?

Cells that secrete cytokines,which coordinate specific and nonspecific defenses,are called

Allowing small children to be exposed to some dirt is one way of imparting