In a one to two-page paper, give an overview of the embryonic stage of development. 

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Step 1: In a one to two-page paper, give an overview of the embryonic stage of development.

  • Describe the ectoderm, mesoderm, and endoderm and their associated structures.
  • Discuss the structure and function of the embryonic disk.
  • Describe embryo development and the role of chorionic villi.
  • Include any environmental factors that may cause malformations in the developing embryo.