What is embryo and its function?

An embryo is an initial stage of development of a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell.

What is one of the major characteristics of the embryonic period of development?

This stage is marked by amazing change and growth. The early body systems and structures established in the embryonic stage continue to develop. The neural tube develops into the brain and spinal cord and neurons continue to form. Once these neurons have formed, they begin to migrate to their correct locations.

What are the 4 stages of embryonic development?

The Stages of Embryo Development
  • Fertilization. Fertilization is the union of the female gamete (egg) and the male gamete (spermatozoa). …
  • Blastocyst Development. …
  • Blastocyst Implantation. …
  • Embryo Development. …
  • Fetal Development.

What are the three types of embryo?

By the process of gastrulation, the embryo differentiates into three types of tissue: the ectoderm, producing the skin and nervous system; the mesoderm, from which develop connective tissues, the circulatory system, muscles, and bones; and the endoderm, which forms the digestive system, lungs, and urinary system.

What are the 5 characteristics of development?

5 Main Areas of Child Development
  • cognitive development,
  • social and emotional development,
  • speech and language development,
  • fine motor skill development, and.
  • gross motor skill development.

What happens in the embryo stage?

Starting in the second week after fertilization, the embryo starts to develop distinct cell layers, form the nervous system, make blood cells, and form many organs. By the end of the embryonic stage, most organs have started to form, although they will continue to develop and grow in the next stage (that of the fetus).

What is an embryo made of?

The zygote spends the next few days traveling down the fallopian tube. During this time, it divides to form a ball of cells called a blastocyst. A blastocyst is made up of an inner group of cells with an outer shell. The inner group of cells will become the embryo.

How is embryo formed?

During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine lining — a process called implantation.

What are the types of embryo?

There are three types of embryo sacs, monosporic, bisporic and tetrasporic. In the monosporic embryo sac, out of the four megaspores, one megaspore at the chalazal end takes part in the formation of the embryo sac.

What is the period of embryonic development?

After conception, your baby begins a period of dramatic change known as the embryonic stage. This stage runs from the 5th through the 10th week of pregnancy. During this stage, the baby is called an embryo.

What are the major events that occur during embryonic development?

Important events that occur during the first week of human embryonic development include gamete approximation, contact and fusion of gametes, fertilization, mitotic cleavage of the blastomere, morula formation, blastocyst formation, and implantation of the blastocyst.

Why is the embryonic period the most important during development?

The embryonic period is the most critical period of development because of the formation of internal and external structures. The critical periods of development for the organs are also discussed in the section on specific organ development.

What are the 4 characteristics of development?

(1) Different people have different developmental goals. (2) What may development for one may not be development for the others. It may be destructive for the others. (3) Income is the most important component of development, but along with income, people also seek equal treatment, good health, peace, literacy etc.

What are 3 characteristics of development?

(1) Development is the continuous process that takes place regularly. (2) The growth in the process of development varies from one person to the other depending on the health, genetic characters and the food they consume. (3) Development follows the correct pattern in the growth as infancy to the death.

What are the six characteristics of development?

Our new Thrive philosophy is born from six stages of human development: social-emotional, intellectual, moral, psychological, physical, and spiritual.

What are the important characteristics?

Three of the most important characteristics include being honest with yourself, being real, and being willing to change.
  • Be Honest With Yourself. …
  • Be Real. …
  • Be Willing To Change.

What are the 5 types of development?

Physical, intellectual, social, emotional, and moral.

How many characteristics of development are there?

Child development incorporates four main characteristics that can be assessed at each stage of a child’s milestones. These characteristics are physical, intellectual, emotional and social.

What are the 7 main characteristics?

There are seven characteristics of living things: movement, breathing or respiration, excretion, growth, sensitivity and reproduction. Some non-living things may show one or two of these characteristics but living things show all seven characteristics.

What are the 5 characteristics of a character?

5 Different Character Traits Every Protagonist Should Have
  • Curiosity. A curious protagonist will want to solve every mystery, every puzzle and will want to know things that he or she might not be supposed to know. …
  • Self-preservation. …
  • Duty. …
  • Empathy. …
  • Leadership.