Before the fetal stage is the embryonic stage. The embryo develops into the fetus.
Embryo
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.
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.
There really isn't much difference between a zygote, embryo, and fetus. A zygote forms after fertilization and becomes an embryo, which later becomes a fetus.
A baby. In biology, the initial stage is called a zygote.
A zygote is the union of two gametes, prior to the embryonic stage of a developing embryo and fetus.
Think of what steps a human life form must go through between being conceived and being born. Zygote, being the earliest stage of development, and a fetus being the last stage of development before birth. A zygote is the initial cell formed after a sperm and egg have joined. A blastocyst begins at day 5 in mammals after fertilization. This all occurs during the first week of being conceived. After the first week, the developing life form becomes an embryo, and the embryo is the stage where DNA is built.. After week 9 in a human lifeform, it is considered a fetus. This is where vital organs and bone begin to form.
An Embryo is a stage before Fetus, the Fetus is more developed than an Embryo, the stage of Birth and a baby being more developed than a fetus.
After the egg has been fertilized the egg transfoms into a zygote the embryo and then a fetus which after becomes a baby!
The nutrients used by the zygote between fertilization and implantation come from the newly formed placenta. The placenta is what provides nourishment to the developing fetus.
Zygote-> Embryo -> Fetus
The difference between a embryo and a fetus is that the fetus is a fully developed embryo and a embryo takes up to 8 weeks to develop into a fetus An embryo is a fertilized egg that turns into a fetus at 8 weeks.An Embryo is the very early stages of development after the egg being fertilised by a sperm and is categorised up until 8 weeks.A Foetus is described as an embryo that has passed through the very early stages of development and is categorised as from 8 weeks up until 23 weeks or further.