From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?
1What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?
1
Are the extra embryonic membranes the same in all vertebrates?
Explain coeloms. From which germ layer does it originate?
What are histogenesis and organogenesis?
How is the yolk sac formed?
To which structures do coeloms give birth? Are all animals coelomate?
Explain organogenesis?
What is coelom? Are all animals coelomate?
What is placenta?
Is there exchange of cells between the mother and the fetus through the placenta?
In which type of animals does the placenta exist? What is its main function?
What are peritoneum?
What is coelom?
What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
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 extra embryonic membranes present in vertebrates?
