Question

which immune system component responds to diverse pathogens, is specific, and has memory?
innate
adaptive

Explanation:

The innate immune system is non - specific and does not have memory. The adaptive immune system, however, can respond to a wide variety of pathogens, has a specific response (targets particular antigens), and can remember previous encounters with pathogens to mount a faster and more effective response in the future.

Answer:

B. adaptive