The role of the cell membrane is most like the job of which person?
a firefighter who evacuates people from a burning building
a police officer who allows select people to enter and leave a crime scene
a bus driver who drives the express route from the suburb to downtown
a teacher who keeps students in the classroom during an exam
The correct answer is: a police officer who allows select people to enter and leave a crime scene.
Explanation: The cell membrane controls what enters and exits the cell, similar to how a police officer regulates access to a crime scene, allowing only certain individuals entry while keeping others out. This selective permeability is crucial for maintaining the internal environment of the cell.