What is the function of the umbilical cord?

5

What is the main function of placenta?

1

Classify the animals based on the germ layers in their embryonic development?

1

Nmae extra embryonic membranes layers in vertebrates?

1

What is the function of the vitellus in the vertebrate egg?

1

What are the extra embryonic membranes present in vertebrates?

5

Is there exchange of cells between the mother and the fetus through the placenta?

5

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

5

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

1

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

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

1

Explain blastopore?

1

After the morula stage what is the next stage? What is the morphological feature that defines that stage?

5

What is the cell division during the first stage of the embryonic development called? How is this stage characterized?

5

Explain histogenesis?

1