Explain monozygotic and dizygotic twins?

1

Which cells are produced in the first stage of embryonic development?

1

What is coelom? Are all animals coelomate?

1

Explain pericardium?

1

How does the embryo turn from gastrula into neurula? How is the neural tube formed?

1

What is the chorioallantois membrane present in the embryonic development of reptiles and birds? How does this membrane participate in the energetic metabolism of the embryo?

5

From which germ layer do the epidermis and the nervous system originate?

1

What are histogenesis and organogenesis?

5

From which germ layer do the liver and the pancreas originate?

1

Explain histogenesis?

1

What are pleura, pericardium, and peritoneum?

5

Explain the embryonic development stages after formation of blastula?

1

What is umbilical cord?

1

What are the four initial stages of the embryonic development?

5

Explain gastrulation?

1