Answer the following question given this paragraph: 

Immunity can be acquired in an active or passive way, and it can be natural or artificial. Watch this video (http://openstaxcollege. org/l/immunity) to see an animated discussion of passive and active immunity. What is an example of natural immunity acquired passively?.


Q: What bodily defense can be acquired in an active or passive way, and can be natural or artificial?


A:
immunity