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 born on February 3, 1821, in Bristol, England. As a girl, she moved with her family to the United States, where she first worked as a teacher. Despite widespread opposition, she later decided to attend medical college and graduated first in her class, thus also becoming the first woman to receive her M.D. in the United States.