In which type of animals does the placenta exist?

1

Explain gastrulation?

1

How does the embryo turn from gastrula into neurula?

1

What is the germ layer from which the coeloms originate?

5

How is the neural tube formed?

1

From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?

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

Why can the amnion also be considered an adaptation to terrestrial life?

5

What are peritoneum?

1

From which germ layer do blood cells originate?

1

Explain peritoneum?

1

After the morula stage what is the next stage?

1

Explain foetal pole?

1

From which germ layer do blood cells originate? What are other organs and tissues made from that germ layer?

1

What are pleura, pericardium, and peritoneum?

5