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
A fourth album, Pearl, was released a little more than three months after her death, reaching number 1 on the charts. Joplin rose to fame in 1967 during an appearance at Monterey Pop Festival, as the lead singer of the then little-known San Francisco psychedelic rock band Big Brother and the Holding Company.