The immune system includes certain types of white blood cells. It also includes chemicals and proteins in the blood, such as antibodies, complement proteins, and interferon. Some of these directly attack foreign substances in the body, and others work together to help the immune system cells.
Scott Joplin. Scott Joplin was the best-known American ragtime musician and composer, setting the standard for all that followed. Ragtime â which gave birth to Jazz â has a rhythm in which the accompaniment is strict two-four time and the melody, with improvised embellishment, is in steady syncopation. Joplin`s instrument of choice was the piano. Early days
(1868-1917). Scott Joplin, the King of Ragtime music, was born near Linden, Texas on November 24, 1868. He moved with his family to Texarkana at the age of about seven. Even at this early age, Joplin demonstrated his extraordinary talent for music. Encouraged by his parents, he was already proficient on the banjo, and was beginning to play the piano.