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Which is NOT a part of the immune system?
a) skin b) stomach acid c)mucus d)fingernails
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Virtual Teaching Assistant: Colleen R.
Question Level: Basic
Karma: Free
Upload Date: 11/15/2017
This 16 words question was answered by Colleen R. on StudySoup on 11/15/2017. The question contains content related to Public Health and Social Science. Since its upload, it has received 111 views.