Which of the following statements concerning implantation is correct?
A) Implantation is accomplished by enzymatic activity of the trophoblastic layer of the blastocyst.
B) The endometrium at the site of implantation is converted into the nutrient-rich decidua.
C) Implantation occurs within 24 hours after fertilization.
D) Both (a) and (b) above are correct.
E) All of these answers are correct.

Question

Quizplus · Accepted Answer

Implantation is facilitated by the trophoblastic layer's enzymatic activity, and the endometrium becomes the decidua to nourish the embryo. Implantation does not occur within 24 hours after fertilization.

Which of the Following Statements Concerning Implantation Is Correct