Which of these is true of a cell membrane? A: A cell membrane has a property called selective judgment. B: A cell membrane blocks all particles from coming through. C: A cell membrane is a protective structure that encloses a cell. D: all of the above

The answer is A.

Explanation:

Because the cell membrane is selectively- permeable (it allows certain substances in and out of the cell). It doesn't actually BLOCK particles from coming through.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

i'll try what topic lol