Answer:
It enables a rapid defense against an antigen that has been previously encountered.
Step-by-step explanation:
Adaptive immunity consist of highly specialized, systemic cells that can prevent the growth rate of antigen that entered our body.
After dealing with a previously encountered pathogen, our adaptive immunity possess some sort of blueprint that can be reused to repeat the same exact protocol. This mean that it can enables a rapid defense if it has to deal with the same type of antigen.