The three-domain system recognizes fundamental differences between two groups of prokaryotes.
Hope this helps!!
The diffusion of water through a selectively permeable membrane is called osmosis.This allows only certain particles to go through including water and leaving behind the solutes including salt and other contaminants. In the process of reverse osmosis, thin film composite membranes (TFC or TFM) are used.
It has no nucleus and no membrane bound organelles
That thing would need to rely on some source of food to live. Plants are living and they rely on sun and water. Humans rely on calories.