PT150.S3.Q17 > Question

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Mosquito-borne disease outbreaks typically increase after extended periods of wet weather, but in areas where mosquitoes breed primarily in wetland habitats, there tend to be more outbreaks after droughts.

The right answer will be a hypothesis that describes a key difference between areas where mosquitoes breed primarily in wetland habitats and areas where mosquitoes breed primarily in other types of environments. That difference must explain why droughts create improved conditions for mosquito-borne disease in areas where breeding occurs in wetland habitats. This difference might relate to humans’ susceptibility to disease, mosquitoes’ disease carriage abilities, or mosquito birthrates under drought conditions in these areas.

This has nothing to do with droughts or wet periods—presumably, insecticides are prohibited regardless of weather conditions, so (A) doesn’t help explain the increased disease outbreaks that follow droughts in wetland habitats.

This has nothing to do with droughts or wet periods, so it doesn’t help explain the increased disease outbreaks that follow droughts in wetland habitats.

If wetland habitats contain aquatic insects that eat mosquito larvae, it makes sense that periods of drought lead to more cases of mosquito-borne disease. These aquatic predators die or are weakend during droughts, allowing more larvae to hatch and grow into diseased mosquitoes.

This has nothing to do with droughts or wet periods, so it doesn’t help explain the increased disease outbreaks that follow droughts in wetland habitats.

We have no information about how new plant growth might or might not impact incidences of mosquito-borne disease, so this answer choice doesn’t help resolve the discrepancy at hand.

PrepTest 150 - Section 3 - Question 17

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