Tooth enamel
Tooth enamel is the hardest and most highly mineralized substance of the body,Ross et al., p. 441 and with dentin , cementum , and dental pulp is one of the four major tissues which make up the tooth . It is the normally visible dental tissue of a tooth and must be supported by under more
Barbara McClintock
Barbara McClintock (June 16 , 1902 – September 2 , 1992 ) was a pioneering American scientist and one of the world's most distinguished cytogeneticists . McClintock received her Ph.D. in botany from Cornell University in 1927, where she was a leader in the development more
Anabolic steroid
, transporting 5α-dihydrotestosterone .
Anabolic steroids, also known as anabolic-androgenic steroids or AAS, are a class of steroid hormone s related to the hormone testosterone . They increase protein synthesis within cells, which results in the buildup of cellular tissue (an more
Rudolf Vrba
Rudolf 'Rudi' Vrba, born Walter Rosenberg (September 11 , 1924 – March 27 , 2006 ), was a professor of pharmacology at the University of British Columbia . He came to public attention in 1944 when, in April that year, he and a friend, Alfréd Wetzler , became the second and third more
Alfred Russel Wallace
Alfred Russel Wallace OM , FRS (8 January 1823 – 7 November 1913 ) was a British naturalist , explorer , geographer , anthropologist and biologist .
He did extensive fieldwork first in the Amazon River basin, and then in the Malay Archipelago , where he identifie more