where does the embryo develop into a foetus and then a baby?

a group of cells that forms from a zygote is called as...

The menstrual cycle repeats every?

The egg cell develops in the

The lining of the uterus starts to grow thicker after

Different women have menstrual cycle of different lengths

The developing embryo is fed by its mother’s blood through a tissue called the

What structure protects and cushions the fetus throughout its prenatal development?