Respuesta :
Answer: Cell Differentiation
Explanation: In a developing fetus a single cell proliferates again and again to form an embryo having well defined organs employed to perform different functions.
The phenomenon of cell differentiation can be defined as the process by which a cells divide to from different types of cells having a specialized cell function.
Thus, the process that allows the cells of the mesoderm to form heart tissue, bone and muscle is differentiation.
