What is notochord?
Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo?
What is the stage of the embryonic development in which these structures are formed?
From which germ layer do blood cells originate?
What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed?
To which structures do coeloms give birth? Are all animals coelomate?
What is the cell division during the first stage of the embryonic development called?
What is the function of the yolk sac?
What is the chorioallantois membrane present in the embryonic development of reptiles and birds?
From which germ layer do the liver and the pancreas originate?
How during gastrulation are the first two germ layers formed? Which are these germ layers?
From which germ layer do the liver and the pancreas originate? What are other organs and tissues made from that germ layer?
In which type of animals does the placenta exist?
How is the neural tube formed?
From which germ layer do blood cells originate? What are other organs and tissues made from that germ layer?