After implantation, the inner cell mass differentiates into an outer layer $\_\_\_\_$ 1 , middle $\_

Question

After implantation, the inner cell mass differentiates into an outer layer $\_\_\_\_$ 1 , middle $\_\_\_\_$ 2 , and an inner $\_\_\_\_$ 3 .\

Professor PC Thomas Classes · Answer

(c) : Immediately after implantation, the inner cell mass (embryo) differentiates into an outer layer called ectoderm and an inner layer called endoderm. A mesoderm soon appears between the ectoderm and the endoderm.