What is the characteristic of the gastrula stage of embryo development? select one of the options below as your answer:
Aformation of the neural tube and nervous system
Bformation of thethree germinal layers and the primitive gut
Cformation of the amniotic cavity and archenteron?
Aformation of the neural tube and nervous system
Bformation of thethree germinal layers and the primitive gut
Cformation of the amniotic cavity and archenteron?