Final answer:
Specialized cells like nerve cells, muscle cells, and red blood cells serve specific functions. Contrasting specialized cells with stem cells that have the potential to differentiate, sources of stem cells include embryonic, adult, and cord blood stem cells.
Explanation:
Specialized cells in the human body include nerve cells, muscle cells, and red blood cells. These cells are adapted to perform specific functions.
Contrast these specialized cells with stem cells which have the ability to differentiate into various cell types. Stem cells are unspecialized and have the potential to develop into specialized cells.
Three sources of stem cells include embryonic stem cells, adult stem cells, and cord blood stem cells.
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