The answer is skin
The first line of defence is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva and mucous produced by the skin and mucosal lining are part of that physical barrier, too.
Answer:
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Explanation:
It has encouraged both forgeries and the shadow market in antiquities.
Answer:
Ethnicity
Explanation:
The 3 theories most commonly thought of when thinking ot talking about psychology are, psychoanalytic theory, learning theory, and cognitive theory. These theories seek/ help to explain much of human behavior
