Answer:
antibodies
Explanation:
The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. The term "antigen" comes from ANTI-body GENerating substances.
that is true because of the potential of the two different drugs interacting badly. Certain drugs should not be taken together, that's why the paper you get with a prescription lists what cannot be taken with that rx.
