Shortly after implantation ________.
A) maternal blood sinuses bathe the inner cell mass
B) myometrical cells cover and seal off the blastocyst
C) the trophoblast forms two distinct layers
D) the embryo gastrulates (within 3 days)
Answer: C
Shortly after implantation ________.
A) maternal blood sinuses bathe the inner cell mass
B) myometrical cells cover and seal off the blastocyst
C) the trophoblast forms two distinct layers
D) the embryo gastrulates (within 3 days)
Answer: C