LSAT 113 – Section 3 – Question 08

LSAT 113 - Section 3 - Question 08

June 2002

You need a full course to see this video. Enroll now and get started in less than a minute.

Ask a tutor

Target time: 1:06

This is question data from the 7Sage LSAT Scorer. You can score your LSATs, track your results, and analyze your performance with pretty charts and vital statistics - all with a Free Account ← sign up in less than 10 seconds

Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT113 S3 Q08
+LR
+Exp
Must be false +MBF
A
3%
159
B
87%
167
C
5%
158
D
3%
155
E
2%
155
136
146
156
 +Medium 146.265 +SubsectionMedium

For all species of higher animals, reproduction requires the production of eggs but not necessarily the production of sperm. There are some species whose members are all female; the eggs produced by a rare female-only species of salamander hatch without fertilization. This has the drawback that all offspring have genetic codes nearly identical to that of the single parent, making the species less adaptive than species containing both male and female members.

Summary
Reproduction for all species of higher animals requires the production of eggs, but not necessarily sperm. There are some species whose members are all female; the eggs produced by a rare famale-only salamander species hatch without fertilization. This has the drawback that all offspring have genetic codes nearly identical to that of the single parent, causing the species to be less adaptive than species with both male and female members.

Notable Valid Inferences
Some species of higher animals do not produce eggs.

A
There are some species of salamanders that have both male and female members.
Could be true. We know that a rare female-only species of salamander exists, but there could also be other species of salamander with both male and female members.
B
There are some species of higher animals none of whose members produce eggs.
Must be false. The first sentence tells us that reproduction for all higher animals requires the production of eggs.
C
There is a significant number of female-only species of higher animals.
Could be true. We know that a rare female-only species of salamander exists. It could be the case that there are many other female-only species.
D
Some species of higher animals containing both female and male members are not very adaptive.
Could be true. We know that female-only species are less adaptive than species with both male and female members, but this does not preclude the possibility of a species with both males and females that is also not very adaptive.
E
Some offspring of species of higher animals containing both female and male members have genetic codes more similar to one parent than to the other parent.
Could be true. We know that for female-only species offspring have genetic codes identical to the single parent. It is possible that some offspring of species with both males and females have genetic codes more similar to one parent.

Take PrepTest

Review Results

LSAT PrepTest 113 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

Get full LSAT course

Leave a Reply