The "African Eve" hypothesis, which suggests that all modern humans share a common female ancestor and that populations ancestral to present day humans migrated out of Africa about 200,000 years ago, is based on
A) the discovery of "Lucy," the mother of us all.
B) analysis of variability in nuclear DNA.
C) analysis of variability in mitochondrial DNA.
D) studies of Homo erectus fossils.
E) the extinction of Neanderthals over 200,000 years ago.
C
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Conquest and colonization are examples of __________
a. cultural evolution b. culture contact c. assimilation d. forced assimilation
What negative effects did the use of biocides have on Antiqua, Barbados, and St. Vincent?
What will be an ideal response?
Refer to the table below. If A = 6 and B = 10, which of the following is true?
A) The firm should buy more of Input 1 and less of Inputs 2 and 3.
B) The firm should buy more of Input 2 and less of Inputs 1 and 3.
C) The firm should buy more of Input 3 and less of Inputs 1 and 2.
D) The firm is minimizing costs.
Gilmore found that among different peoples of the world notions of masculinity
A) included strength, resistance to pain, and bravery only among primitive peoples. B) varied greatly by geographical location. C) usually stressed intellectual, rather than physical achievement. D) usually involved strength, resistance to pain, and bravery. E) none of the above.