MICROANATOMY

Detailed explanation-1: -The correct option is B. Differentiation. Cellular differentiation occurs throughout development causing cells to take on their final form and physiology. The process through which unspecialized cells become specialised to perform certain functions is known as differentiation.

Detailed explanation-2: -Cells undergo a process called differential gene expression. This process allows cells to become specialized, as their structure determines their function. The process begins when a stimulus acts on an unspecialized cell (a cell that has the potential to become any cell in the body-multipotent stem cells).

Detailed explanation-3: -When planets begin to melt, the materials in them begin to separate from one another. The heaviest materials, such as metallic iron, sink to form cores. Low-density magmas rise, forming crusts. This process is called differentiation.