Explain coeloms.
Explain gastrulation? What stage follows gastrulation?
What are the archenteron and the blastopore?
What are the archenteron?
Why can the allantois be considered an adaptation to terrestrial life?
What are histogenesis and organogenesis?
What organogenesis?
Explain archenteron?
Classify the animals based on the germ layers in their embryonic development?
Are all animals coelomate?
Explain peritoneum?
How does the embryo turn from gastrula into neurula?
What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
What is the function of the vitellus in the vertebrate egg?
What is placenta?