Umbilical hernia repair. Umbilical hernia repair is surgery to repair an umbilical hernia. An umbilical hernia is a sac (pouch) formed from the inner lining of your belly (abdominal cavity) that pushes through a hole in the abdominal wall at the belly button. You will probably receive general anesthesia (asleep and pain-free) for this surgery.
Light provides the energy plants need to make the food required for them to grow and flower. Plants are the only organisms able to use the energy from light to produce sugars, starches and other substances needed by them as well as by other living organisms.
In tropical forests where the trees keep their leaves all year round, some plants climb up the trunks and branches of the trees in order to reach the light. See image 1. There are even some plants that have leaves adapted to be able to carry out the process of photosynthesis with less sunlight than usual.