The difference between the embryonic phase and the pre-embryonic ...

[kellyjaisingh]

The difference between the embryonic phase and the pre-embryonic phase is that:
 A) the embryonic phase occurs during the first two weeks of pregnancy, whereas the pre-embryonic phase describes the period from two to eight weeks of pregnancy.
  B) zygote formation occurs after the embryonic phase, whereas blastocyst formation takes place after the pre-embryonic phase.
  C) the embryonic phase begins at week nine of pregnancy, whereas the pre-embryonic phase begins at week two.
  D) organ formation and development begin during the embryonic phase, whereas blastocyst formation occurs in the pre-embryonic phase.

Question 2

The disorder in which the embryo does not implant properly in the uterine lining during pregnancy is called _____.
 A) pre-eclampsia
  B) gestational diabetes
  C) botulism
  D) osteoporosis

[lorealeza77]

Answer to Question 1

D

Answer to Question 2

A