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.
Off-site search results for Scott Joplin... African Americans - Scott Joplin, King of Ragtime Scott Joplin Known as the King of Ragtime, this son of a former slave was born circa 1867 in Texas and may have had access to a piano in the white-owned house in which his mother worked. He's best known for The Maple Leaf Rag
His finances were precarious throughout his career, despite a steady income from the Maple Leaf Rag. Joplin had the majority of his works published by John Stark of Sedalia, Missouri although he did use other lesser-known companies including his own Scott Joplin Music Publishing Company.His first opera A Guest of Honor was lost after an unsuccessful tour in 1903.he following is a complete list of musical compositions by Scott Joplin (ca. 1867âApril 1, 1917).