What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed?
1From which germ layer do the liver and the pancreas originate? What are other organs and tissues made from that germ layer?
1From which germ layer do blood cells originate? What are other organs and tissues made from that germ layer?
1
Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos?
To which structures do coeloms give birth?
Are the extra embryonic membranes the same in all vertebrates?
Explain the difference between amnion and chorion?
What is the cell division process directly related to the embryonic growth?
What are histogenesis and organogenesis?
What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed?
Explain pleura?
What are pleura, pericardium, and peritoneum?
What is coelom?
How are animals classified according to the germ layers present in their embryonic development?
What is polyembryony?
How during gastrulation are the first two germ layers formed? Which are these germ layers?
What is coelom? To which structures do coeloms give birth?
How is the mesoderm (third germ layer) of triploblastic animals formed?