Answer :

Final answer:

Babies acquire immunity through antibodies passed from the mother, either via placenta or breast milk.


Explanation:

Naturally acquired passive immunity occurs when a baby receives antibodies from the mother, either through the placenta during pregnancy or through breast milk after birth.

Example 1: The transfer of IgG from mother to fetus through the placenta.

Example 2: The presence of IgA and IgG in human colostrum and breast milk.


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