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maksim [4K]
3 years ago
14

In which trimester does the following occur? A sac called a placenta forms around the embryo and is connected to the embryo with

an umbilical cord.
Health
2 answers:
liubo4ka [24]3 years ago
6 0
On the first trimester.
Lemur [1.5K]3 years ago
5 0
Key word is embryo. First trimester forms embryo, after 3 month it's a fetus.
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