The term "not specialized" is a bit tricky when talking about cells. All cells have some degree of specialization, even if it's just in their basic function of carrying out the processes of life.

However, the closest thing to a "not specialized" cell is a totipotent stem cell. These cells have the potential to develop into any type of cell in the body, including the cells that make up the placenta.

Here's why it's tricky:

* All cells have a specific function: Even if a cell isn't a nerve cell or a muscle cell, it still has a role to play. For example, a skin cell is specialized for protecting the body.

* Totipotent stem cells are still specialized: While they have the potential to become anything, they are still specialized in their ability to divide and differentiate into other cell types.

So, while there is no cell that is truly "not specialized," totipotent stem cells are the closest we have to that concept.