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.
Introduction. Annelids are segmented worms. The well developed coelom (fluid filled body cavity) acts as a hydrostatic skeleton with muscles of the body walls acting on it. The body segments of an annelid are partitioned by internal divisions called septa, giving independence of movement to each of them.Segmentation and a tube within a tube body plan have resulted in relative specialisation of the digestive tract into a pharynx, a stomach, and accessory glands.he body segments of an annelid are partitioned by internal divisions called septa, giving independence of movement to each of them. Segmentation and a tube within a tube body plan have resulted in relative specialisation of the digestive tract into a pharynx, a stomach, and accessory glands.