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Which of these is the human body's first line of defense against invading pathogens such as bacteria and viruses? A) body temperature B) macrophages C) skin cells D) vitamins
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Which of these is the human body's first line of defense against invading pathogens such as bacteria and viruses? A) body temperature B) macrophages C) skin cells D) vitamins

User Mike Lowery
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2 Answers

4 votes

The answer is more then -c

User Cristi Jora
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5 votes
The answer is C- skin. The skin is the first line of defense and is non-specific.
User Mariane
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