They contain carbon, hydrogen, oxygen and nitrogen and usually sulfur, occasionally phosphorus. Proteins form a large and essential part of the body mass, comprising especially cell membranes, connective tissue, muscles, enzymes, hormones, blood proteins. To maintain this mass the diet must contain a high proportion of protein, especially in growing animals and those recovering from debilitating diseases.
Russian composer Sergei Prokofiev wrote Peter and the Wolf in 1936 after returning to Moscow following a 19-year, self-imposed exile. It is a children's musical story that teaches about the orchestra by introducing various characters portrayed by seven themes played on either solo instruments or groups of instruments.
The band's publicist, Heather Lylis, said Travers died at Danbury Hospital in Connecticut. Peter, Paul and Mary was one of the most successful folk groups of the 1960s, with hit songs such as If I Had a Hammer, Lemon Tree, Leaving on a Jet Plane and Puff the Magic Dragon.. Mary Allin Travers was born Nov. 9, 1936, in Louisville, Ky., to two journalists who moved the family to New York's Greenwich Village.