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. The first woman in America to receive a medical degree, Elizabeth Blackwell championed the participation of women in the medical profession and ultimately opened her own medical college for women. Born near Bristol, England on February 3, 1821, Blackwell was the third of nine children of Hannah Lane and Samuel Blackwell, a sugar refiner, Quaker, and anti-slavery activist.