MICROANATOMY

Detailed explanation-1: -The ability of a cell, tissue, or organism to better resist stress damage by prior exposure to a lesser amount of stress is known as adaptive response. It is observed in all organisms in response to a number of different cytotoxic agents.

Detailed explanation-2: -The defenses and mechanisms of adaptive immunity include (1) cell-mediated immunity, mediated by T lymphocytes against intracellular pathogens, and (2) humoral immunity, mediated by B lymphocytes against extracellular pathogens and toxins.