Warnings. 1  If you have stopped sweating, are dizzy, experiencing painful cramps or feel disoriented, seek medical attention immediately. 2  Rapidly rehydrating with water alone can cause abnormally low sodium levels, which can also be dangerous to your health.
Best Answer: The endoderm is one of the germ layers formed during animal embryogenesis. It forms the epithelial lining of multiple systems, such as the gastrointestinal tract. The mesoderm germ layer forms in the embryos of animals more complex than cnidarians, making them triploblastic. During gastrulation, some of the cells migrating inward contribute to the mesoderm, an additional layer between the endoderm and the ectoderm, which contributes to the circulatory system. This layer also develops into a coelom within more complex organisms. The ectoderm is the start of a tissue that covers the body surfaces. It emerges first and forms from the outermost of the germ layers. In chickens, this would consist of feathers.
Ectoderm. Ectoderm is one of the three primary germ layers in the very early embryo. The other two layers are the mesoderm (middle layer) and endoderm (most proximal layer), with the ectoderm as the most exterior (or distal) layer.It emerges and originates from the outer layer of germ cells.he position of the ectoderm relative to the other germ layers of the embryo is governed by selective affinity, meaning that the inner surface of the ectoderm has a strong (positive) affinity for the mesoderm, and a weak (negative) affinity for the endoderm layer.