The various strains of micro-organisms stick to the walls of your intestines in a way that resembles a field of flowers. Here, have a look!But why are the micro-organisms in your gut called "flora"?These bacteria have been color-coded, see?Your intestinal flora keeps you from getting sick and keeps your body healthy!I heard more than half of your body's immune cells are in your guts.Wow, pretty! It really does look like a flower field!Yuuka!?