Question

how does embryo develop in female

Answer 1

The fertilized egg (zygote) begins to develop into a hollow ball of cells called the blastocyst. The blastocyst implants in the wall of uterus. The area that will become the brain and spinal cord (neural tube) begins to develop. The heart and major blood vessels are developing.

Answer 2

$\textbf{Development of Embryo }$

When zygote forms by fertilisation of sperm and egg, it divides repeatedly to give rise to a ball of cells.

The cells then begin to form groups.

These groups then give rise to different tissues and organs of the body.

This forms embryo, which then get embedded into wall of the uterus.

This their continues to develop, and develops body parts -hands, legs, head, eyes, ears etc.

The foetus then forms, which when get fully developed, the mother gives birth to the baby.