Most large population centers in the Pacific Northwest are located near what?
A) The Cascades
B) Farmland
C) The Coast
D) Forests and mineral resources
C
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Which of the following statements about geothermal power is false?
a. It provides a moderate net energy gain. b. It can be highly efficient at accessible sites. c. It releases more carbon dioxide than fossil fuels. d. It has a low cost at accessible sites. e. There is a scarcity of suitable sites.
Particularly subject to pirate attacks is
A. the Tasman Sea B. the Serasun Strait C. the Sulu Sea D. the Strait of Malacca
Acute toxicity differs from chronic toxicity in which of the following ways?
A. Acute toxicity has a low LD50. Chronic toxicity has a high LD50. B. Acute toxicity can occur with a single exposure. Chronic toxicity requires repeated exposures. C. Acute toxicity results in death. Chronic toxicity results in serious illness. D. All of these statements are correct. E. None of these statements is correct.
Imagine the river dries and the squirrel populations again share the same physical area. But they cannot interbreed. Evolutionary forces have acted independently on the populations while they were separated by the river, and ____________ has occurred.
a. selective forces b. more c. allopatric speciation d. microevolutionary events e. communicate f. interbreed g. less h. gene pool i. symmetric speciation j. macroevolutionary events