________ is NOT a trend in early hominin evolution
A. Enlargement of the back teeth
B. The development of bipedal locomotion
C. Decreasing cranial capacity
D. Greater reliance on tools
E. Elaboration of cultural means of adaptation
C
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The earliest well-documented primate fossils date from the:
A. Late Miocene B. Middle Oligocene C. Early Paleocene D. Middle Eocene
What does the term gene flow refer to?
A. the random loss of genes through sampling error B. the genetic mutations that occur during meiosis C. the movement of alleles from one chromosome to another D. the exchange of genetic material between populations of the same species E. a random pattern of chromosome mutations
The Clovis culture appears all over __________ by __________ years ago
a. Africa; 13,000 b. North America; 25,000 c. Africa; 25,000 d. North America; 13,000
One result of the Green Revolution of the 1970s was:
a. a reduction in the amount of chemical fertilizers used for crop growth. b. new inbred seeds becoming more resistant to diseases than traditional seeds. c. a reduced need for irrigation, dramatically saving freshwater resources. d. improved soil quality from new technology that also polluted water sources.