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Biology, 01.10.2021 01:00 snoopy112007
The passing of antibodies across the placenta from mother to fetus is an example of , and provides immunity.
1.active; long-lived
2.active; short-lived
3.passive; long-lived
4.passive; short-lived
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The passing of antibodies across the placenta from mother to fetus is an example of , and provides...
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