This stage of prenatal development is the first 10-14 days. The developing baby is the size of a pin head and roots grow from the developing baby into the uterus to provide the developing baby with nutrients.

a
zygote
b
fetus
c
embryo
d
newborn

Respuesta :

It is an embryo because a zygote is just a cell and it turns into a fetus after 8 weeks