The average date of the first 1-inch snow (1 inch or more) is December 2. The greatest depth of snow on the ground was 19 inches on February 8-10, 1982. The greatest 24-hour snowfall was 15 inches on January 1-2, 1999. Temperature and precipitation records go back to 1888 for Champaign-Urbana.
The name annelidia derives from annellus, which means little ring in Latin. The body of annelids is divided into segments that are separated by septa, and in many annelids, bristles called satae are attached to each segment.
The head and the rear of the body is not segmented. The digestive system of species in this phylum runs the length of the body. Food is taken in at one end of the body and expelled at the other end. Annelids have two sets of muscles that help them move.here are about 15,000 species in this phylum. The phylum includes earthworms, leeches, and marine worms known as polychaetes. Species in this phylum have metameric bodies. Metameric bodies are divided into segments called annuli. The annuli are covered in tiny hairs called setae. Setae help the worms move.