Answer:
A magnetic compass points to the earth's magnetic poles, which are not the same as earth's geographic poles. ... When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole
Explanation:
During implantation, the trophoblast differentiates into two distinct layers: the inner cytotrophoblast, and the outer syncytiotrophoblast.
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It’s 12-24 hours??? Not sure why that isn’t an option.
