Hominids became bipedal
A) about 2 million years after they began to make stone tools
B) about 2 million years before they began to make stone tools
C) about the same time they began to make stone tools
D) about 4 million years before they began to make stone tools
E) none of these
D
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What will be an ideal response?
Life projects promote development through __________
A) more bilateral aid for projects B) a greater role for the United Nations C) emphasis on health-care projects D) giving priority to local people's aspirations
The units of adaptation include both:
a. technology and commerce b. organisms and their environment c. people and animals d. environment and climatic conditions
Environmental consequences related to industrial agricultural often led to:
a. less soil erosion. b. an increase in genetically-modified foods. c. a decrease in deforestation rates. d. a reduction in soil and water contamination. e. a decrease in fuel and machinery costs.