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 become a doctor in the United States. During Blackwellâs life few people would accept the idea of a woman doctor. As a result Blackwell had to struggle all her life to practice medicine.