Transplanted tissues and organs that contain ________ are rejected by the body.

A) self-antigens
B) foreign antigens
C) foreign antibodies
D) self-antibodies
E) plasma proteins

Foreign Antigens

Substances that are recognized by the immune system as non-self, triggering an immune response.

Self-antigens

Antigens present on the body's own cells; usually tolerated by the immune system.

Transplanted Tissues

Tissues moved from one body and placed into another, either in the same person or between individuals, to replace damaged or defective tissues.