PATHOLOGY

Detailed explanation-1: -A non-specific immune cell is an immune cell (such as a macrophage, neutrophil, or dendritic cell) that responds to many antigens, not just one antigen. Non-specific immune cells function in the first line of defense against infection or injury.

Detailed explanation-2: -Nonspecific responses that alter the intracellular environment include fever, inflammation, and interferon.

Detailed explanation-3: -Phagocytosis is a nonspecific defense mechanism in which various phagocytes engulf and destroy the microorganisms of disease. Phagocytes. Among the important phagocytes are the circulating white blood cells called neutrophils and monocytes.

Detailed explanation-4: -So, the correct answer is ‘Killer T-cells’.