Carl Djerassi, 91, the chemist widely considered the father of the ______, died on 31 January 2015?
A. Anti-Biotics
B. Birth control pill
C. Band Aid
D. Injection Needle
Answer:B
Carl Djerassi, 91, the chemist widely considered the father of the ______, died on 31 January 2015?
A. Anti-Biotics B. Birth control pill C. Band Aid D. Injection Needle