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After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?
5What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
5What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
5What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
5After the morula stage what is the next stage? What is the morphological feature that defines that stage?
5
What is coelom? To which structures do coeloms give birth? Are all animals coelomate?
What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?
What are somites?
What is the cell division process directly related to the embryonic growth?
What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
From which germ layer do blood cells originate?
What is notochord?
What are the four initial stages of the embryonic development?
After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described?
How is the neural tube formed?
Explain blastopore?
What is the function of the vitellus in the vertebrate egg?
What is yolk sac?
Explain monozygotic and dizygotic twins?
What are the extra embryonic membranes present in vertebrates?
