In the human immune system, resistance to a particular foreign agent, based on repeated exposure to the agent, is known as

In the human immune system, resistance to a particular foreign agent, based on repeated exposure to the agent, is known as

In the human immune system, resistance to a particular foreign agent, based on repeated exposure to the agent, is known as









A) Acquired immunity
B) Innate immunity
C) Natural immunity
D) Non-specific host resistance










Answer: A