14 weeks
Once the zygote becomes an embryo it starts developing all of its organs, nervous system etc. then after 8 weeks of development everything is there so it becomes a fetus, and the fetus just grows bigger.
a fetus
Fetus
62 days
lungs
I dont freaking know
A female fetus with an a y chromosome is what makes it develop differently from a male fetus.
The female fetus has a Y chromosome while the fetus only has two x chromosome.
Gestation
FeRtIlIzAtIoN--->zYgOtE-->eMbRyO-->dIfFeReNtIaTiOn.:BaBy GrL:.143It gets bigger...
After the egg has been fertilized the egg transfoms into a zygote the embryo and then a fetus which after becomes a baby!
Fetus is name given to human embryo after it is recognizable as human embryo .