Argentina fire ants can be described by all of the following except:
a. They attack with painful and burning stings.
b. They have killed humans, pets, and livestock.
c. Some success in controlling the ants has been achieved with predatory flies.
d. Native ant species help to keep them in check.
e. They have spread throughout much of the southern United States.
D
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Why do some communities inject treated wastewater into aquifers?
A) to recharge it artificially, since nature cannot keep up with urban demands B) as a convenient place to dispose of water that is not suitable for other uses C) for storage in a place that is not subject to as much evaporation as a reservoir D) to prevent flooding due to too much wastewater above the surface
Antidepressants such as Marplan do which of the following?
A) increase the activity of monoamine oxidases B) suppress the activity of monoamine oxidases C) suppress the G-protein-adenylate cyclase cascade D) suppress the synthesis of monoamine messengers
Which of the following is one of the three current major drawbacks of solar energy?
A. Certain greenhouse gases are emitted with its use. B. It emits radiation. C. The resource is nonrenewable. D. This resource is intermittent in nature.
An environmental or political feature that hinders migration is
A) a visa. B) a pull factor. C) a push factor. D) an intervening obstacle. E) both a pull and push factor.