Question

select the true statements. the cell membrane controls what enters and exits a cell. the cell membrane is rigid. the cell membrane maintains a separate environment inside a cell. only animal cells have a cell membrane.

Explanation:

The cell membrane is a selectively - permeable structure that controls the movement of substances in and out of the cell. It is not rigid (cell walls in plants are rigid). It maintains an internal environment by regulating transport. All cells, including plant, animal, bacterial etc., have a cell membrane.

Answer:

The cell membrane controls what enters and exits a cell.