scientific technology

Hi guys this time I will be researching on something called stem cell research. Recently, scientists have discovered special kinds of cells in the body that differs from the rest of the cell in the body. Stem cells can be found in multi-cellular organisms, and they have the ability to become different types of cells in the body. The study and the use of stem cells is indeed an exciting new area of biology. There are 2 kinds of stem cells: adult stem cell and embryonic stem cells.
The adult stem cells can only be found in a few parts of the body--the brain, the eyes, the blood, bone marrow(inside bones), muscle and skin.Adult stem cells in these areas replace cells that are lost and damaged through injury or disease. They can be used to replace skin cells naturally lost. After donating blood, stem cells in the blood and bone marrow replace the lost blood cells.
The embryonic stem cells can develop into any kind of cell in the body. This happens naturally when the body is developing in the uterus; all the different kinds of cell in its body com from its embryonic stem cells. Scientists do remove the embryonic stem cells from younger embryos(4-5 years old) and use the stem cells produced after growing it in a dish to change it into different kinds of adult cells. Adult stem cells cannot be grown in a dish.
Stem cells can help treat diseases by repairing or replacing damaged tissue. However, as the study of stem cells is a new scienccceonly a few diseases such as blood diseases can be treated. It could be use in the future to treat many diseases. However, many people are against the idea of using stem cells as some people thinks that killing a human embryo lowers the value of life. Others think that that is acceptable as the unused embryos will die naturally anyway.