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Home Q & A Board Biology-Related Homework Help General Biology
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cckk1231990 cckk1231990
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10 years ago
Complement proteins are present in the blood plasma in healthy people. Why does complement only become activated in the presence of infection? Slight Smile
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skip5284skip5284
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10 years ago
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gtw74624,  anhle95,  vivian28,  玉婷 昌

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cckk1231990 Author
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#2
10 years ago
thank you：）！
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