Answer / Vishesh Bahadur Srivastav

The animal pole is the region of the vertebrate egg that will develop into the embryo, while the vegetal pole will form the extraembryonic membranes. This polarity allows for the organized development of the embryo.

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

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

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What is the chorioallantois membrane present in the embryonic development of reptiles and birds?

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After the morula stage what is the next stage?

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What is notochord?

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What is the germ layer from which the coeloms originate?

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In which type of animals does the placenta exist?

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Explain pericardium?

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How notochord structure id formed?

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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? Which are these germ layers?

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To which structures do coeloms give birth? Are all animals coelomate?

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