Question

Name the layers formed during embryonic development.

Answer 1

Endoderm, mesoderm, and ectoderm

• 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.
• These three layers give rise to all tissues in adults.