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
Scott Joplin (1868â1917) Scott Joplin was a black American composer and pianist known as the King of Ragtime at the turn of the 20th century. Studying piano with teachers near his childhood home, Joplin traveled through the Midwest from the mid-1880s, performing at the Columbian Exposition in Chicago in 1893. Settling in Sedalia, MO, in 1895, he studied music at the ...