The local health department is trying to limit the spread of West Nile virus in a suburban community. West Nile Virus is spread by mosquitoes as they feed
In newspapers and on the radio, people in the region are told to drain standing water from any places where mosquitoes might breed. In addition, the health department announces that in a week, they will begin spraying a fog of mosquito poison in the early evening, as soon as the sun sets and mosquitoes become most active. The approach taken by this health department best represents A) chemical treatment.
B) agricultural treatment.
C) ecological control.
D) integrated pest management.
D
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What is the rank these food production systems in order of proportion of the world's food supplied from biggest to smallest?
A. cropland, rangeland, and fisheries B. rangeland, cropland, and fisheries C. fisheries, rangeland, and cropland D. cropland, fisheries, and rangeland E. rangeland, fisheries, and cropland
What is the contour interval on this map segment?
What will be an ideal response?
What is the highest level category in the Soil Taxonomy system?
A. series B. families C. subgroups D. great groups E. orders
In many freshwater toxicology studies, investigators rely upon knowledge of biomagnification to guide their investigations
If the researchers were looking for evidence of mercury contamination from a nearby power plant, they would most likely find the highest levels in the blood of A) herbivorous ducks living near the power plant. B) rabbits that live near the power plant. C) tadpoles in water near the power plant. D) snapping turtles in water near the power plant.