I feel the answer is cell membrane .
The cell membrane is a semipermeable protection and covering for the cell.
Please mark me as brainliest, if this helped.
C-All of the inner planets are smaller than outer planets.
-Steel jelly
The Endoplasmic reticulum is a series of pipes and it moves in the cell. Without the E.R., the protein factory (ribosomes) would not be able to ship the proteins and cells would starve to death. Hope this helped!
*changes in earth plates
*energy production
*energy production
*changes in earth's rotation
