A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and tissues. All animals, except perhaps sponges, form two or three germ layers. The germ layers develop early in embryonic life, through the process of gastrulation.
Dekha hu na m intelligent...xdxdxdxd
Dekha hu na m intelligent...xdxdxdxd
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