Answer:The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
the file is now available for the sale and will sent a message in the mail on Monday after the company has it in the news channel and is currently working with my family for you and my
B.when an action is done
when an action is done to it when it is describing the verb when it possesses something when it is doing the action.
I believe it is option 2. (a chronological book of American history)