Fact 1: Antigens are molecules that the immune system recognizes as foreign to the body.

Fact 2: Rejection is a normal reaction of the body to a foreign object.

Given the two facts above, answer the question "Antigens are molecules that the immune system recognizes as needing to be what?" with the following options: 
- welcomed into the body
 - it needs them
 - stored in the body
 - accepted into the body
 - major threat to health
 - Something that causes allergies
 - rejected from the body
 - members of their own species


 

       rejected from the body  