LSAT 143 – Section 3 – Question 04

LSAT 143 - Section 3 - Question 04

June 2015

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT143 S3 Q04
+LR
Most strongly supported +MSS
A
0%
153
B
2%
152
C
4%
159
D
93%
164
E
1%
153
127
137
147
 +Easier 147.721 +SubsectionMedium

The size of the spleen is a good indicator of how healthy a bird is: sickly birds generally have significantly smaller spleens than healthy birds. Researchers found that, in general, birds that had been killed by predators had substantially smaller spleens than birds killed accidentally.

Summary

The size of a bird’s spleen is a good indicator of the bird’s health. Sick birds usually have much smaller spleens than healthy birds. Researchers found that birds killed by predators generally had much smaller spleens than those killed accidentally.

Strongly Supported Conclusions

Healthier birds are less likely to be killed by predators and sickly birds are more likely to be killed by predators.

Predators may target weaker birds over healthier birds.

Accidental deaths in birds may be less related to healthiness than death by predation.

A
Predators are unable to kill healthy birds.

Unsupported. We know that birds killed by predators generally have smaller spleens, but we cannot conclude that predators are unable to kill healthy birds.

B
Most birds with smaller than average spleens are killed by predators.

Unsupported. Birds killed by predators generally have smaller spleens, but we cannot conclude that most birds with small spleens are killed by predators. Perhaps most birds die from some other cause but, of the few birds killed by predators, many have small spleens.

C
Predators can sense whether a bird is sick.

Unsupported. Predators tend to kill birds with smaller spleens, but this does not mean that predators can sense whether a bird is sick. Perhaps sick birds are simply slower than healthy ones and cannot escape predators. The stimulus doesn’t give us enough information on this.

D
Sickly birds are more likely than healthy birds to be killed by predators.

Strongly supported. Sickly birds usually have smaller spleens than healthy birds. And birds with smaller spleens are more likely to be killed by predators. So, sickly birds are more likely than healthy birds to be killed by predators.

E
Small spleen size is one of the main causes of sickness in birds.

Unsupported. Sick birds tend to have small spleens, but we cannot conclude that small spleens cause sickness in birds.

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LSAT PrepTest 143 Explanations

Section 1 - Logical Reasoning

Section 2 - Reading Comprehension

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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