0
Through growth and development.
By growth we mean increase in size and also in the number of cells. An adult human, for example, has about 10 or even 100 trillion cells. The cell divisions are mitosis.
By development we mean that as the embryo grows cells become different, a process that is called, logically enough, differentiation. Cells not only become structurally different, but they acquire correspondingly different functions, too. So, to take a human again as an example, some cells are specialized for carrying oxygen around the body in the blood, some destroy bacteria that they encounter, others pump sugars out of the intestine into the blood after a meal, and so on. This division of labor makes for a highly complex and efficient organism.
So the first thing that visibly happens to a zygote is that it divides by mitosis into two cells, then they divide to form a four-celled embryo, and so on. Eventually the ball of identical-looking cells hollows and acquires an axis, and differentiation begins.
For more detail, see the links below.
What else can I help you with?
How is an embryo produced?
An embryo is produced through the process of fertilization, where a sperm cell from a male fertilizes an egg cell from a female. This results in the formation of a zygote, which then undergoes cell division and development to become an embryo.
How does an egg become an embryo in humans?
After fertilization, the egg and sperm combine to form a zygote. The zygote then undergoes multiple cell divisions to form a blastocyst, which implants into the uterus and develops into an embryo. The embryo continues to grow and develop into a fetus over the course of pregnancy.
Does the embryo develop in the womb?
Correct, the embryo develops in the womb, also known as the uterus.
What normally happens after fertilization in sexual reproduction?
After fertilization in sexual reproduction the zygote is formed. The zygote later on develops in to an embryo by embryo-genesis.
How does resorption of the zygote or embryo causes zygote or embryo death?
Re-absorption is when the female's body breaks down and uses the embryo's body, usually occurring when the body determines that it is not pregnant. The zygote dies because it is being absorbed into the females body.
What is the term for fertilized egg of the womb?
the word that represents a womens fertilised egg is zygote. hope this helps
What happens when a egg and sperm unite?
The sperm unites with the Ovum in the womb, to form a zygote, which is the beginning of the Embryo.
What is a another name for zygote?
One would think it's embryo but a zygote is not a embryo yet, it is the early stage of what will become a embryo. Zygote is the word used and you can use the word cell since a zygote is the initial cell formed after a sperm and egg have joined. After 1 week it has transformed into a embryo.
How does zygote develop to become an embryo then a fetus?
I dont freaking know
How do babies become embryos?
Babies don't become embryos, it's the other way around. A fertilised egg becomes a zygote, a zygote becomes an embryo, an embryo becomes a foetus, a foetus becomes a baby.
What sequence best represents sexual reproduction in order?
1. gametes - zygote - fertilization - embryo 2. fertilization - zygote - gametes - embryo 3. zygote - gametes - fertilization - embryo 4. gametes - fertilization - zygote - embryo answer is 4. gametes-fertilization-zygote-embryo
How is an embryo produced?
An embryo is produced through the process of fertilization, where a sperm cell from a male fertilizes an egg cell from a female. This results in the formation of a zygote, which then undergoes cell division and development to become an embryo.
What is difference a ovu zygote embryo 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.
How does an egg become an embryo in humans?
After fertilization, the egg and sperm combine to form a zygote. The zygote then undergoes multiple cell divisions to form a blastocyst, which implants into the uterus and develops into an embryo. The embryo continues to grow and develop into a fetus over the course of pregnancy.
How many weeks after conception does the embryo in the mothers womb become a fetus?
8 weeks
How many times of cell division does the zygote need so as to become the eight-cell embryo?
3
What is the difference between a zygote embryo and fetus?
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.
