Which type of energy has the greatest EROI?
A. Hydropower
B. Coal
C. Ethanol from corn
D. Oil and gas
E. Wind power
Ans: A. Hydropower
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A loss of 90% of the population in the Pingelap atoll from a typhoon in 1775 resulted in a high percentage of the current population being affected by achromatopsia. As a result, all of these affected individuals _____
a. have normal vision b. are descendants of one of the 20 original survivors c. receive genetic testing and genetic counseling d. have exceptional hearing e. are descendants of the 20 original survivors
What is an evolutionary adaptation of an existing structure for a completely new purpose (e.g., feathers for insulation or for flight)?
a. exaptation b. key innovation c. coevolution d. adaptive radiation e. microevolution
One concern frequently voiced by those opposed to globalization is that falling barriers to international trade destroy manufacturing jobs in wealthy advanced economies such as the United States and Western Europe
a. true b. false
Which of the following is used to sterilize items that should not, or cannot, be exposed to heat or water?
A. ethylene oxide B. formaldehyde C. hydrogen peroxide D. calcium hypochlorite E. triclosan