Cell membrane is a thin and elastic membrane covering cytoplasm.
Cell membrane functions as a semi-permeable barrier,allowing a very few molecules across it while fencing the majority of chemicals inside cell.In this way,cell membrane maintains the internal composition of cell.In addition to this vital role ,cell membrane can also sense chemical messages and can identify other cells.
Cell Membrane Function and Structure The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.
The process by which <em>two species evolve</em> as a <em>response</em> to <em>changes in one another over time</em> is called, "coevolution" thus the correct answer is that it is an example of <u><em>COEVOLUTION</em></u>
