Why do Plasma Membrane exists in all living things.

http://en.wikipedia.org/wiki/Cell_membrane

The plasma membrane exists in all living things because it is a vital component of cells that helps maintain their structure and function. It serves as a protective barrier, separating the contents of the cell from its external environment, and helps regulate what enters and exits the cell.

To find more information about the plasma membrane and why it exists in all living things, you can visit the provided link to the Wikipedia page on cell membranes. This page contains detailed information about the structure, functions, and significance of cell membranes in biology. It also includes references to scientific literature and other reliable sources that you can explore for further exploration.