Multiple choice questions XXXXXXVII — task. Science CBSE, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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The given graphs show the amount of different antibodies P and Q in the blood of a person during a pathogenic infection and after complete recovery. What could be inferred from the given graphs?

The person has acquired passive immunity for both the pathogens for which his body produced antibodies P and Q.
This time the person suffered from the pathogenic infection for which his body produced antibody Q.
The person might have suffered from two pathogenic infections simultaneously for which his body produced antibodies P and Q.
The person has acquired artificial active immunity for pathogen against which his body produced antibody Q.

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