Question

Development of embryo​

Answer 1

Answer:

Human embryonic development, or human embryogenesis, refers to the development and formation of the human embryo. It is characterised by the processes of cell division and cellular differentiation of the embryo that occurs during the early stages of development

Answer 2

$\bf Development \: of \: Embryo$

The zygote or the fertilised egg divides rapidly and repeatedly and forms a ball of hundreds of cells. The cells then begin to form groups that develop into different tissues and organs of the body. This developing structure is called an embryo. The embryo gets embedded in the thick and soft wall of the uterus for further development. This is called implantation. The baby stays in embryo form for the first eight weeks of pregnancy when none of its body parts can be identified.

The embryo continues to develop in the uterus. After 8 week it gradually develops body parts such as hands, legs, head, eyes, ears, etc. The stage of the embryo in which all the body-parts can be identified is called foetus. The foetus is attached to the uterus by a special structure called placenta. The placenta provides oxygen and nutrients to the foetus and also removes wastes. When the development of the foetus is complete, the mother gives birth to the baby. The total time taken for the proper formation of the baby is called gestation period. It is about 9 months in humans.