The correct answer is the trophoblast forms two distinct layers.
Under usual conditions, fertilization takes place in one of the fallopian tubes, then the fertilized egg starts to produce its path towards the uterus. By about the fifth day of conception, the embryo ultimately reaches the uterus and gets the implant in the uterine lining or endometrium.
During week II of implantation, the trophoblast layer gets involved by combining with the uterine wall, and during this time the layer of trophoblast differentiates and proliferates into two different layers, that is, cytotrophoblast and syncytiotrophoblast.
Answer:
no problem
Explanation:
but you should probably ask any questions that you have in order to get help
Let his earning of paper route be w . then
he has $ 37.80 already in his account & is saving 20% of his earning each week soooooo
As u know it is a simple algebraic equation now
(20100x)10=87.80−37.80
so $25 dollars is his earning
Answer:
B
Explanation:
The mean is the average of a set.
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Hope this helps!
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