asked 57.1k views
5 votes
By which week is the blastocyst an embryo?

A) first week
b) second week
c) forth week
d) fifth week​

asked
User OmaymaS
by
8.3k points

2 Answers

5 votes

Answer:

C) Forth week

Step-by-step explanation:

In week #4 of pregnancy, the blastocyst implants in the wall of the uterus and develops into the placenta and embryo. The blastocyst is considered an embryo at the point when the amniotic sac develops (by about day 10 to 12 after fertilization, or at the start of week #5 of pregnancy).

answered
User Pazzo
by
7.7k points
6 votes

Answer:

Week four

Step-by-step explanation:

answered
User Vincent Gigandet
by
7.6k points
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