In the first phase of gastrulation of amphibi | vedclass

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(C) During the process of gastrulation in amphibians,the first phase involves the involution of cells at the blastopore lip. The cells that migrate in

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Endoderm

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(C) During the process of gastrulation in amphibians,the first phase involves the involution of cells at the blastopore lip. The cells that migrate inward first are the prospective endodermal cells. Therefore,the separation and internalization of the endoderm mark the initial phase of gastrulation,followed by the mesoderm and finally the ectoderm remains on the surface.

In the first phase of gastrulation of amphibians,there occurs the separation of:

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