Embryo's are called fetuses after 8 weeks. The term zygotes is only used right after fertilization before cleavage occurs when the embryo is still a single cell.
After a sperm fertilizes an egg its referred to as a zygote. Then it becomes a fetus, I believe after the first trimester.
It is called a morula, and consists of the first 16 cells from the division of the zygote (fertilized egg). The individual undifferentiated cells are known as blastomeres, and form a hollow structure called a blastocyst. Once differentiation of cells occurs, the structure is simply called an embryo, and later a fetus.
The result is a fertilized egg called a zygote :]
A zygote is formed by the fusion of male and female reproductive cells. A embryo is a young organism in the early stages of development. A foetus or fetus ia a developing baby from about eight weeks after conception and a ovum is a female sex cell (egg in other words) (plural: ova) Zygote: Cell that is formed from the fertilization of a sperm and an egg, basically its a fertilized egg Embryo: Unborn baby, before it becomes a fetus Fetus: Fully formed baby (inside mum still) with head, fingers, no tail..
Fertilization results in a zygote which turns into an embryo, then a fetus, and then a baby -insert animal species here.-
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.
The embryonic period extends to the end of the eight week. After the embryonic period (8weeks), the developing human is called a fetus.
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.
For the first few weeks it is called a zygote, then it is called an embryoRead more: What_is_the_baby_called_during_first_trimester
A baby. In biology, the initial stage is called a zygote.
Zygote-> Embryo -> Fetus
The implantation of the zygote occurs in the uterus. The developing fetus continues to grow and develop in the uterus until birth.
After the egg has been fertilized the egg transfoms into a zygote the embryo and then a fetus which after becomes a baby!
After a sperm fertilizes an egg its referred to as a zygote. Then it becomes a fetus, I believe after the first trimester.
Before the fetal stage is the embryonic stage. The embryo develops into the fetus.
Haploid Gametes Egg Sperm Fertilization Zygote Blastula Gastrula Embryo Fetus
I dont freaking know