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
In which type of animals does the placenta exist?
What are extra embryonic membranes?
What are the animal pole and the vegetal pole of the vertebrate egg?
What is the cell division process directly related to the embryonic growth?
Explain peritoneum?
What is the function of the yolk sac?
What are the archenteron and the blastopore? What are the destinations of the archenteron and of the blastopore?
How does the embryo turn from gastrula into neurula? How is the neural tube formed?
How notochord structure id formed?
What are pleura?
From which germ layer do blood cells originate?
After the morula stage what is the next stage? What is the morphological feature that defines that stage?
What is the function of the vitellus in the vertebrate egg?
How is the mesoderm of triploblastic animals formed?
What are the functions of umbilical cord?