Answer / Santosh Kumar Yadav

The embryo turns from gastrula into neurula by a process called neurulation, during which the neural plate rolls up to form a tube-like structure called the neural tube.

Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo?

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What is notochord? How is this structure formed?

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Explain gastrulation?

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What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?

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What is yolk sac?

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

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Explain the embryonic development stages after formation of blastula?

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Differentiate between amnion and chorion?

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

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

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What are histogenesis and organogenesis?

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Explain animal pole?

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