The global carbon cycle is now usually divided into the following major reservoirs of carbon interconnected by pathways of exchange: 1  The atmosphere. 2  The terrestrial biosphere. 3  The oceans, including dissolved inorganic carbon and living and non-living marine biota.
Elizabeth Blackwell: First Woman M.D. (Barnard Biography Series, Vol. 2) Mar 1, 1997
Elizabeth Blackwell was the first woman to graduate from medical school (M.D.) and a pioneer in educating women in medicine. Dates: February 3, 1821 - May 31, 1910. Early Life. Born in England, Elizabeth Blackwell was educated in her early years by private tutor. Samuel Blackwell, her father, moved the family to the United States in 1832.