Need biology help with a Naturally acquired passive immunity question

Biology
Tutor: None Selected Time limit: 1 Day

 Natural acquired passive immunity includes (Points : 2)
       
       
       
       
       

None of the above

Nov 23rd, 2015

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Only IgG molecules that crossed the placenta and IgA from breast milk

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Nov 23rd, 2015

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Nov 23rd, 2015
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Nov 23rd, 2015
Feb 25th, 2017
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