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
In 1976 Joplin was posthumously awarded the Pulitzer Prize for his contributions to music. Carter G. Woodson The âFather of Black History,â Carter G. Woodson realized the importance of the public having the knowledge of the black peopleâs con-tributions to humanity.