Question

what are the various call layer produce from the inner cell mass of the mammalian embryo

Answer 1

The inner cell mass or ICM forms three primary germ layers of the mammalian embryo after the blastocyst has implanted in the uterine wall.
1. a single layer of cells called the epiblast
2. some cells migrate out of the epiblast to form the endoderm
3. some more cells migrate out to form the mesoderm
4. Remaining cells that remain in the epiblast form ectoderm