What are other organs and tissues made from that germ layer?
What is gastrulation?
What are pleura, pericardium, and peritoneum?
What are the blastopore?
What are the endocrine functions of the placenta?
What are histogenesis?
In which type of animals does the placenta exist?
Nmae extra embryonic membranes layers in vertebrates?
What is notochord?
Are the extra embryonic membranes the same in all vertebrates?
How notochord structure id formed?
Explain vegetal pole?
Which hormones are produced by placenta? What is their significance?
Explain histogenesis?
What is polyembryony?