The current world population, half of which lives in urban areas today, is estimated at:
a. 1 billion
b. 7 billion
c. 11 billion
d. 23 billion
b
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The agricultural revolution began with:
A) the development of the plow. B) the use of irrigation. C) the domestication of plants and animals. D) the advent of class societies. E) the development of urban areas.
Which of the following is NOT characteristic of the evolutionary pattern of the hominin lineage ancestral to modern humans?
A. increasing body and dental robustness B. the increasing reliance on extrasomatic means to overcome environmental challenges C. increasing brain size D. decreasing sexual dimorphism
Three Gulf Coast sites were:
A. Tikal, Palenque, and Copán. B. San Lorenzo, La Venta, and Tres Zapotes. C. El Mirador, San José Mogote, and Monte Albán. D. Teotihuacan, Tenochtitlán, and Cuicuilco.
Match each term with its definition:
1. Down syndrome 2. Turner syndrome 3. Klinefelter syndrome individual has two X chromosomes and one Y chromosome individual has only a single X chromosome and no Y chromosome individual has an extra copy of chromosome 21