Specific,Adaptive Immunity -Acquired Response Invoked when the inflammatory response and complement systems fails -Requires stimulation. Response time is in days. Major features: Diversity -many different pathogens recognized Specificity distinguishes particular molecules Memory -responds faster with subsequent exposure Primary immune response is reaction to first exposure. Secondary immune response is reaction to exposure using “memory”of first response.Specific, Adaptive Immunity - Acquired Response Invoked when the inflammatory response and complement systems fails - Requires stimulation. - Response time is in days. Major features: • Diversity - many different pathogens recognized • Specificity - distinguishes particular molecules • Memory - responds faster with subsequent exposure Primary immune response is reaction to first exposure. Secondary immune response is reaction to exposure using “memory” of first response