It can be said that amphibian populations are declining worldwide,
a. but only in areas that are greatly disturbed by human activities
b. in all areas except in protected wildlife preserves, where they are increasing somewhat
c. except in the Arctic where they are surviving okay
d. in all areas, even in protected wildlife preserves and parks
e. in all areas, except tropical rainforests where the very large populations can withstand some disturbance
D
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List examples of geologic structures resulting from tension, compression, and shear
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Which of the following statements most accurately describes the benefits of Bt corn?
A) Because it contains a certain gene removed from a soil bacterium, Bt corn is immune to the European corn borer. B) Bt corn is resistant to the pesticide Bt, so farmers growing Bt corn can use Bt on the weeds in their cornfields without it harming their crop. C) Bt corn produces increased yields because it is resistant to infection from the Bt virus that lives in agricultural soils. D) Although Bt corn has its benefits, the use of Bt corn runs the risk of pests becoming immune to its toxins.
In one forecast, west of San Francisco, the flow is meridional with a cut-off warm, upper high situated just south of Alaska. To the south, both east and west of the high are troughs. Because the shape of this flow around the high resembles the Greek letter ____, the high and its accompanying ridge are known as a(n) ____ high
a. theta b. gamma c. omega d. beta e. alpha
The AB blood type in humans is an example of
A) codominance. B) pleiotropy. C) incomplete dominance. D) a polygenic trait.