Because facilitated diffusion is a passive process, it does not require energy expenditure by the cell. Water also can move freely across the cell membrane of all cells, either through protein channels or by slipping between the lipid tails of the membrane itself.
hope this is the right answer......
Prophase is a Triangular Square Telophase is a Circle with cylinders
I believe the answer is "The oldest Earth rocks are 3.9 billion years old."
