Recent archaeological research in South Africa has demonstrated that the ancestors of black South Africans __________.
A. were not present in the region until around the same time as the arrival of white settlers
B. occupied the region some 1,500 years before the initial European settlement
C. came from the north as migrating, Bantu-speaking farmers in the latter half of the eighteenth century
D. are most closely related to the Australian Aborigines
Question 2
The accuracy of radiocarbon dating has been improved through correlation with samples dated by means of __________.
A. potassium-argon dates
B. dendrochronology
C. palynology
D. faunal correlation
Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
Rose window, south transept, Chartres Cathedral.
Student Perspective of Research