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What is the body's first defence against infection and viruses A: saliva, mucus, and hairs B:antibodies C:lymphocytes D: lymph nodes
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Jul 4, 2017
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What is the body's first defence against infection and viruses
A: saliva, mucus, and hairs
B:antibodies
C:lymphocytes
D: lymph nodes
Health
high-school
Jacky Shek
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What is the body's first defence against infection and viruses?
A: saliva, mucus, and hairs
Queso
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Jul 11, 2017
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Queso
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