Are all animals coelomate?
What are somites?
How are animals classified according to the germ layers present in their embryonic development?
What are histogenesis and organogenesis?
What is the cell division during the first stage of the embryonic development called?
How is the mesoderm of triploblastic animals formed?
What is polyembryony?
What is notochord?
What are pleura?
What is coelom? To which structures do coeloms give birth? Are all animals coelomate?
What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
What is the function of the yolk sac?
Define polyembryony?
What are the archenteron and the blastopore?
Explain gastrulation?