One of the differences that is noticeable in a very comparison of viruses and bacteria could be the height and width of the microorganism. Viruses less complicated smaller than bacteria. A typical virus is between 20 and 400 nanometers, while a bacterium can be as large as 1000 nanometers. The smallest bacteria are generally visible having a light microscope, while viruses require an electron microscope for observation. Unlike other apes, orangutans tend to be more solitary. About the only time they encounter the other person is the place mating or sharing a fruiting tree. They spend roughly 90 percent of time in trees. They walk on all fours when on the ground and unlike the African apes, they use their palms or fists as an alternative to their knuckles. Males will move through the forest making loud howling calls, that may be heard 1.2 miles away, to make certain they stay out of each other's way. They are active in the daytime and at night, they'll build a nest by bending branches in to a platform so they can sleep on within the trees. To protect themselves in the rain and sun they are going to create a shelter from leafy branches, and they are even proven to use large leaves as umbrellas or ponchos. Langer-Giedion Syndrome is often a true contiguous gene deletion syndrome due to deletions both in the TRPS and EXT1 genes. The lack of a functional EXT1 gene causes the bone exostoses, bone anomalies and facial abnormalities which can be noticed in patients. The EXT1 gene and the TRPS1 gene tend to be absent in patients and research suggests that other genes based in the 8q24.11-8q24.13 region of chromosome 8 may be deleted or non-functional also. Longer deletions in this area are characterized by mental retardation and also the other variations in symptoms stated previously.