The model of evolution characterized by an uneven tempo of change is known as:
A. phyletic gradualism
B. punctuated equilibrium
C. disequilibrium
D. asymmetrical speciation
B. punctuated equilibrium
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At 2.5 million years ago __________ were all contemporaries on the African continent
a. A. robustus, A. afarensis and A. garhi b. A. aethiopicus, A. anamensis, and A. africanus c. A. boisei, A. anamensis, and A. robustus d. A. garhi, A. aethiopicus, and A. africanus
What negative side effect came with the FUNAI plan to introduce rice agriculture to the BakairÃ?
A) They ended up with less food after the introduction of agriculture than they had had previously. B) The people became dependent on cash for fuel, fertilizer, and repairs. C) Many of the children developed nutritional deficiencies after shifting to a simpler diet. D) The dominant members of society hoarded the wealth for themselves.
A dominant firm's demand curve is ________ the market demand curve at all points where the competitive fringe's production is ________.
A) greater than; negative B) identical to; negative C) identical to; equal to zero D) greater than; equal to zero
Identities that fall between ethnic identities and civilizations are called:
a. supraethnic. b. superethnic. c. protoethnic. d. proethnic.