Stem cells use signals to begin the process of differentiation, whereby they mature from an unspecialized cell into a specialized cell that has distinct functions and form. These signals originate either from within the ... More »

Differentiating between Alzheimer's and other types of dementia occurs when viewing images of the brain, according to Healthline. Alzheimer's disease is a specific condition, while dementia refers to a collection of symp... More » Health Conditions & Diseases

The primary differences in the features of plant cells and animal cells are the presence or absence of a cell wall, chloroplasts and centrioles. Plant cells have cell walls and chloroplasts, while animal cells lack such ... More »

Cell differentiation describes the process by which a cell is destined to become a particular type of cell, according to the Department of Biology at Kenyon College. The zygote is a cell formed from the union of sperm an... More »

Stem cells in the skin generate cells that can differentiate themselves into surface tissue or hair follicles, as explained by ScienceDaily, and this process occurs roughly every 27 days. The skin, which is the largest o... More »

The cell wall gives cells shape, enables plant growth, prevents bursting from water pressure, keeps out water and pathogens, stores carbohydrates and sends signals to cells. The flexible cell wall surrounds plant cell me... More »

A composite cell is any one of a collection of different types of cells that all have the same general chemical makeup that perform the same functions. Because many cells are very similar to one another in these ways, it... More »