PATHOLOGY

Detailed explanation-1: -Answer and Explanation: The answer is c. T cells and B cells. T cells and B cells are the cells of the adaptive immune system.

Detailed explanation-2: -B cells have been considered to be part of the adaptive immune system, specializing in the generation of protective high-affinity antibodies.

Detailed explanation-3: -Innate immunity. Innate immunity can be viewed as comprising four types of defensive barriers: anatomic (skin and mucous membrane), physiologic (temperature, low pH and chemical mediators), endocytic and phagocytic, and inflammatory.

Detailed explanation-4: -Answer and Explanation: The option that is not part of the innate immune system is b. Antibodies in the blood. Antibodies are part of the adaptive immune response that are produced by plasma B cells.

Detailed explanation-5: -Examples of innate immunity include: Cough reflex. Enzymes in tears and skin oils. Mucus, which traps bacteria and small particles.