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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
What is gastrulation? How during gastrulation are the &rst two germ layers formed? Which are these germ layers?
What are the endocrine functions of the placenta?
What is coelom? To which structures do coeloms give birth?
What is coelom? Are all animals coelomate?
What are the animal pole and the vegetal pole of the vertebrate egg?
When are archenteron and blastopore formed?
Nmae extra embryonic membranes layers in vertebrates?
What is the morphological feature that defines that stage?
From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?
Explain pleura?
Explain the difference between amnion and chorion?
What are the four initial stages of the embryonic development?
What are the extra embryonic membranes present in vertebrates?
What is coelom? To which structures do coeloms give birth? Are all animals coelomate?
What are the archenteron and the blastopore?
