By avoiding drugs, alcohol and tobacco.
Genes control the sex of a developing embryo.
Drinking and smoking while pregnant are known harmful effects on a developing baby in the womb.
embryo
Amniotic sac
Fetus zygote is not the term to use. A zygote is a fertilized egg. An embryo is a developing baby. A fetus is a baby before it is born.
it's when you're pregnant and walking through the door and you drop it on the floor
Genes control the sex of a developing embryo.
Genes control the sex of a developing embryo.
Drinking and smoking while pregnant are known harmful effects on a developing baby in the womb.
It's possible - anything 'out of the ordinary' could be as a result of being pregnant - as the hormones in your body are preparing you for nurturing a developing embryo.
to provide nourishment to the developing embryo in a seed
The endosperm does. It acts much like yolk in an egg does for the embryo developing in the egg: provides the necessary nutrients for the developing embryo to grow from.
developing embryo.
an embryo
the uterus
A mammal embryo is the developing baby inside the mother.
Three layers develop in an embryo .