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
What are the archenteron and the blastopore?
Explain pericardium?
What are extra embryonic membranes?
Where do liver and pancreas originate from?
In which type of animals does the placenta exist?
What are peritoneum?
How is the yolk sac formed?
How is the notochord structure formed?
What is gastrulation? How during gastrulation are the first two germ layers formed?
Explain vegetal pole?
After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?
How notochord structure id formed?
How are animals classified according to the germ layers present in their embryonic development?
How yolk sac is formed?
What are extra embryonic membranes? Name these layers in vertebrates?