What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?
What is the germ layer from which the coeloms originate?
What are extra embryonic membranes?
How are animals classified according to the germ layers present in their embryonic development?
What is the difference between amnion and chorion?
What is coelom? To which structures do coeloms give birth? Are all animals coelomate?
What are somites?
After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described?
What is gastrulation? How during gastrulation are the first two germ layers formed? Which are these germ layers?
Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos?
What are pleura, pericardium, and peritoneum?
What are the three types of germ layers that form tissues and organs in animals?
What is the function of the umbilical cord?
What is the chorioallantois membrane present in the embryonic development of reptiles and birds? How does this membrane participate in the energetic metabolism of the embryo?
How does the embryo turn from gastrula into neurula? How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates?
