AP BIOLOGY

Detailed explanation-1: -These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.

Detailed explanation-2: -There are two main types of stem cells: embryonic stem cells and adult stem cells. Stem cells are different from other cells in the body in three ways: They can divide and renew themselves over a long time. They are unspecialized, so they cannot do specific functions in the body.

Detailed explanation-3: -Cell differentiation is the process of cells becoming specialized as their body develops. A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.

Detailed explanation-4: -The term stem cell originated in the context of two major embryological questions of that time: the continuity of the germ-plasm and the origin of the hematopoietic system. Theodor Boveri and Valentin Häcker used the term stem cell to describe cells committed to give rise to the germline.

Detailed explanation-5: -Embryonic stem cells. Tissue-specific stem cells. Mesenchymal stem cells.