What is placenta?

1

Explain the difference between amnion and chorion?

1

Nmae extra embryonic membranes layers in vertebrates?

1

What is placenta? What are its functions?

1

What are other organs and tissues made from that germ layer?

1

What are pericardium?

1

What is notochord? How is this structure formed?

5

After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?

5

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

What are somites?

5

What are the cells produced in the first stage of the embryonic development called?

5

What is yolk sac? How is it formed?

1

How is the neural tube formed?

1

When are archenteron and blastopore formed?

1

What are the archenteron and the blastopore?

1