What is unique about stem cells?
They are differentiated.
They are only found in embryos.
They are only found in plants.
They are unspecialized.
The correct answer is: They are unspecialized.
Stem cells are unique because they are unspecialized cells that have the potential to develop into different types of cells in the body. Unlike differentiated cells, such as skin cells or nerve cells, stem cells don't have a specific function and can divide and renew themselves for long periods. They have the ability to differentiate into specialized cell types, repair damaged tissues, and regenerate organs. While stem cells are commonly found in embryos, they can also be found in various adult tissues and even in some plants.