B our enjoyment of nature
True, they have collected data from people with and without the flu virus
Answer:
Eating disorder
A condition characterized by irregular or abnormal eating habits.
Answer:
It develops when the immune system overreacts to a drug, dust, and ect.
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.