Answer: breaks in the skin
Explanation:
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.
My life. In school. Forever alone until after 20 years.
The ideal drug will have a high toxic dose and a low effective dose.
Hope this helps;-;
