Question

Mention two important events that occur during embryogenesis.

Answer 1

Dear student,
There are 3 major events during embryogenesis 1.implantation 2. differentiation of germ layer 3.organogenesis.The process of development of embryo from single cell zygote is called embryogenesis.
1.Implantation-Before Implantation embryo is surrounded by trophoblast, which is a special layer of cells that covers the outside of an embryo and supplies the ball of cells with nutrition.The trophectoderm begins to differentiate into supporting structures such as the placenta so that the embryo can now receive nutrition and oxygen from the mother's blood supply.

2.DIffrenciation of germ layer-:A germ layer is a collection of cells that determine which cells within the embryo will eventually develop into particular organs and tissues.while implantation embryo start dividing into germ layers .there are 3 germ layers mainly-ectoderm ,mesoderm and the innermost endoderm.
​​​​Regards.