The stress is coming from the daily activity
Answer:
I think its C. effective communicator
Explanation:
not really sure, but 80/20
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.