The cell membrane to control what enters and leaves a cell. which of these substances, which accounts for about two-thirds of a cell's mass, is constantly moving in and out of the cell?

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

answer; i believe the correct answer to the above question is ( friction)

c.more precipitation,but only when emission levels.

the answer will be a) proteins i believe