LSAT 150 – Section 3 – Question 17

LSAT 150 - Section 3 - Question 17

June 2018

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT150 S3 Q17	+LR	Resolve reconcile or explain +RRE Causal Reasoning +CausR	A 5% 157 B 3% 155 C 77% 164 D 7% 154 E 8% 158	142 151 159	+Medium	148.057 +SubsectionMedium

Since mosquito larvae are aquatic, outbreaks of mosquito-borne diseases typically increase after extended periods of wet weather. An exception to this generalization, however, occurs in areas where mosquitoes breed primarily in wetland habitats. In these areas, outbreaks of mosquito-borne diseases are worse after periods of drought.

"Surprising" Phenomenon

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.

Objective

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.

The use of insecticides is typically prohibited in wetland habitats.

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.

Human populations tend to be sparse in areas near 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.

Wetland habitats contain numerous aquatic insects that prey on mosquito larvae.

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.

Wetland habitats host a wider variety of mosquito species than do other areas where mosquitoes breed.

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.

Periods of drought in wetland habitats create conditions conducive to the emergence of new plant growth.

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.

LSAT 150 – Section 3 – Question 17

LSAT 150 - Section 3 - Question 17

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LSAT PrepTest 150 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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