Answer:
adaptive immunity
Explanation:
Adaptive immunity is also called as an acquired immunity as it is acquired only after interaction with an antigen. When an antigen in the form of pathogen or immunity vaccination enters into the body of an individual then the immunity system creates antibodies (which causes phagocytosis of pathogens) against the antigens and also develops a memory to fight with such foreign agents in future. The adaptive immunity is dealt by T and B cells and antibodies.
