20pts explain how human embryonic stem cells, adult stem cells, and skin cells taken from the same person would be the same and how they would e different. explain what causes the differences you described.

Stem cells begin to transfor into different types of cells in the human body in a process known as cell differentiation.
Cellular differentiation occurs throughout the cell development of a multi-cellular organism. It occurs when the cell changes from a simply zygote into a complex system of tissues and cell types. 
Stems cells are cells which have the potential to develop into many different cell types in the body during early life and growth. Stem cells serve as internal repair system in many tissues. When stem cells divide while undergoing cell differentiation, it can either retain being a stem cell or become another type of cell like muscle cell, brain cell, or red blood cell.
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The process is known as differentiation
It occurs when the cell changes from a simply zygote into a complex system of tissues and cell types.
Stem cells serve as internal repair system in many tissues.
When stem cells divide while undergoing cell differentiation, it can either retain being a stem cell or become another type of cell like muscle cell, brain cell, or red blood cells.
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