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Home Q & A Board Science-Related Homework Help Health, Nutrition, and Food Sciences
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Divya. Divya.
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7 years ago
The immune system protects the body by distinguishing _____.
A) inside from outside
B) positive from negative
C) self from non-self
D) upper from lower
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timmitimmi
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7 years ago
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Divya. Author
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7 years ago
Correct Slight Smile TY
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Thank you, thank you, thank you!
larrybrads
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Thanks
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