LSAT 157 – Section 3 – Question 11

LSAT 157 - Section 3 - Question 11

June 2020

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT157 S3 Q11
+LR
Argument part +AP
A
57%
160
B
8%
148
C
10%
149
D
21%
157
E
4%
151
137
153
169
 +Harder 145.111 +SubsectionEasier

Biologist: The evolutionary advantage of sexual reproduction is that it increases the range of genetic variation in a species, which is an advantage for the species as a whole. However, an increased range of genetic variation in a species is not advantageous for any individual member of the species. It follows that the sole reason that sexual reproduction has become the rule among both animals and plants is that natural selection has favored some entire species over others.

Summarize Argument
The biologist argues that the evolutionary advantage of sexual reproduction is increasing genetic variation. But this benefit applies to the species as a whole, not to individual members. Thus, the only reason that sexual reproduction is widespread among animals and plants is because natural selection has favored entire species over others.

Identify Argument Part
This is a premise that is used to support the author’s conclusion that natural selection has favored some species over others.

A
It is a claim offered in support of the argument’s conclusion.
This is an accurate description of the claim. It directly supports the conclusion that the reason sexual reproduction is prevalent is due to natural selection favoring some species over others.
B
It is presented to raise a question that sheds doubt on the argument’s conclusion.
This statement does not cast doubt on the conclusion. It is the main premise used to support it.
C
It is a claim that the argument is designed to call into question.
The argument does not challenge this claim. The biologist believes this claim and uses it as a premise to support the conclusion
D
It describes an observed phenomenon for which the argument seeks an explanation.
The argument does not seek to explain this claim. The claim is used as support to explain the main conclusion.
E
It is presented as the main explanation of the origin of an observed phenomenon.
This statement is not the main explanation for the observed phenomenon. The “main explanation” of the phenomenon is the conclusion of the argument.

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LSAT PrepTest 157 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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