Answer / Daleep Singh

The umbilical cord provides the embryo with oxygen, nutrients, and removes waste products during its development. It also serves as a conduit for blood circulation between the mother and the fetus.

What is umbilical cord? And what are its functions?

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

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How does the embryo turn from gastrula into neurula? How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates?

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How during gastrulation are the first two germ layers formed?

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How notochord structure id formed?

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Explain monozygotic and dizygotic twins?

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How is the yolk sac formed? What is the function of the yolk sac?

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What is the function of the umbilical cord?

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When are archenteron and blastopore formed?

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What are the blastopore?

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What are pleura?

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What is notochord?

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