What is the name of the fluid-filled bag of thin tissue that develops around the embryo soon after implantation?
(1 point)
Responses
amniotic sac
amniotic sac
placenta
placenta
umbilical cord
umbilical cord
cervix
(1 point)
Responses
amniotic sac
amniotic sac
placenta
placenta
umbilical cord
umbilical cord
cervix