What is the significance of placenta?
What is the chorioallantois membrane present in the embryonic development of reptiles and birds?
What are the animal pole and the vegetal pole of the vertebrate egg?
Where do liver and pancreas originate from?
Explain peritoneum?
What stage follows gastrulation?
What are the archenteron?
What are the archenteron and the blastopore? What are the destinations of the archenteron and of the blastopore?
What is gastrulation?
What is the stage of the embryonic development in which these structures are formed?
What are the extra embryonic membranes present in vertebrates?
What is the function of the yolk sac?
Explain organogenesis?
Nmae extra embryonic membranes layers in vertebrates?
What are the cells produced in the first stage of the embryonic development called?