Ground penetrating radar works best when
a. soil resistivity is high, as in coarse, well-drained soils and those with low clay content.
b. soil resistivity is low, as in fine, poorly-drained soils and those with high clay content.
c. at depths of more than 30 meters below ground surface.
d. not used to find subsurface features.
e. trained specialists are not required.
a
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Regarding the fossil material termed "early Homo", Leakey guessed was our ancestor:
a. some scholars think there may actually be more than one species present. b. there is definitely only one species. c. it is certain that one species, Homo habilis, evolved directly into Homo sapiens. d. all the individuals appear to be about the same size. e. there is almost no anatomical variation among in these specimens.
A consequence of the enormous native loss of life due to conquest and disease in Spanish America was __________
a. an economic depression caused by lack of labor b. a shift to agriculture and away from mining c. the importation of African slaves d. land grants to any Spaniards who would settle in the Spanish Americas
Anthropologists study biological diversity among populations in terms of:
a. mutation b. gene flow c. clines d. inheritance
The PGA currently has eleven African Americans in their top 125 list
Indicate whether the statement is true or false.