Final answer:
The innate immune system provides quick but non-specific responses, while the adaptive immune system provides specific responses tailored to particular pathogens. Both systems depend on the ability of the immune system to distinguish self from non-self molecules.
Step-by-step explanation:
The innate immune system provides quick but non-specific responses, while the adaptive immune system provides specific responses tailored to particular pathogens. The innate immune system includes barriers to pathogens, leukocytes that phagocytize pathogens, and general responses. The adaptive immune system takes longer to activate but can lead to immunity. Both systems depend on the ability of the immune system to distinguish self from non-self molecules.