What is notochord? How is this structure formed?
From which germ layer do the liver and the pancreas originate? What are other organs and tissues made from that germ layer?
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?
From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?
Explain gastrulation?
What is gastrulation? How during gastrulation are the first two germ layers formed? Which are these germ layers?
What are extra embryonic membranes?
Are the extra embryonic membranes the same in all vertebrates?
What are pleura, pericardium, and peritoneum?
What is placenta?
From which germ layer do the epidermis and the nervous system originate?
How notochord structure id formed?
Why can the amnion also be considered an adaptation to terrestrial life?
How yolk sac is formed?
What is polyembryony?