What is an Embryo Class 8 ?

1. The period of growth that occurs between the formation of a zygote or fertilized egg and the emergence of a fully-formed offspring is known as the embryonic stage. This stage is characterized by repeated mitotic division of the zygote.
2. An embryo is formed as a result of the fusion of male and female gametes during fertilization or syngamy. This process brings together genetic material from both parents to form a new, unique organism.
3. During embryonic development, a multicellular structure forms through a series of cell division and multiplication. This structure will eventually grow and differentiate to form a fully-developed offspring with specialized tissues and organs.

The term “embryo” refers to the early stage of development of an animal when it is still in the egg or within the mother’s uterus. In human development, the term “embryo” is used to describe the unborn child up until the end of the seventh week following conception. After this point, the unborn child is referred to as a fetus, which is the term used to describe the developing organism from the eighth week of gestation until birth.

The term “embryo” is used to describe the stage of development when cells resulting from the division of the zygote begin to form groups that eventually develop into the various tissues and organs of the body. During this stage, the embryo is characterized by its rapid cell division and the formation of specialized cell groups that will later differentiate into different parts of the body.

After fertilization, the zygote undergoes a series of changes. First, it develops into a solid ball of cells. This ball of cells then transforms into a hollow structure known as a blastocyst. Once formed, the blastocyst attaches to the wall of the uterus and begins to develop into an embryo. The embryo is surrounded by fluid-filled membranes and is attached to a placenta, which serves to nourish the growing organism throughout its development.

Once a fertilized egg has implanted in the uterus, the group of cells that will eventually develop into a baby is referred to as an embryo. During the first two weeks after conception, the developing fertilized egg goes through several different stages and is known by different names. Initially, the single fertilized cell is called a zygote. As the zygote begins to divide, it becomes a ball of cells known as a morula, which forms by about day 4. By day 5, the morula develops into a hollow structure called a blastocyst, which is the form in which the embryo implants in the uterus.

The zygote is formed by the fusion of a male gamete and a female gamete during the process of fertilization. In contrast, the embryo is the developing, unborn offspring.

After fertilization, a zygote is formed which develops into an embryo. The zygote undergoes repeated cell division to form a ball of cells, which then begin to group together and develop into various tissues and organs of the body. This developing structure is called an embryo.