LSAT 37, Logical Reasoning I, Q20, LSATHacks

QUESTION TEXT: Antarctic seals dive to great depths and…

QUESTION TYPE: Strengthen – Exception

CONCLUSION: Some researchers say that Antarctic seals store oxygen in their spleens.

REASONING: No specific reason is given, apart from the fact that seals must store oxygen on long dives.

ANALYSIS: A lot of the wrong answers provide pretty weak support. But any support at all is enough to strengthen an argument.

B is the weakest answer because it doesn’t specify that Antarctic seals can store oxygen in muscles. Further, there’s no evidence that storing oxygen in muscles lets seals store oxygen in the spleen. 

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1. This shows that it possible for an animal to store oxygen in their spleen. 
2. CORRECT. First, this doesn’t tell us that Antarctic seals can do the same. Second, muscle tissue isn’t the spleen, and it increased muscle tissue storage doesn’t indicate that the spleen can store oxygen. 
3. This shows that Antarctic seals must store oxygen somewhere. Perhaps in the spleen.
4. This shows that the spleen may have a special function in Antarctic seals. And it seems related to dives.
5. Blood vessels allow oxygen to be used. So extra blood vessels in the spleen could show that oxygen was being stored there. 

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