LSAT 106 – Section 2 – Question 13

LSAT 106 - Section 2 - Question 13

June 1999

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT106 S2 Q13	+LR +Exp	Most strongly supported +MSS Fill in the blank +Fill	A 66% 167 B 7% 160 C 21% 161 D 2% 157 E 5% 161	143 156 170	+Harder	147.566 +SubsectionMedium

Mature white pines intercept almost all the sunlight that shines on them. They leave a deep litter that dries readily, and they grow to prodigious height so that, even when there are large gaps in a stand of such trees, little light reaches the forest floor. For this reason white pines cannot regenerate in their own shade. Thus, when in a dense forest a stand of trees consists of nothing but mature white pines, it is a fair bet that _______.

Summary

Mature white pines intercept almost all the sunlight they receive. They leave a deep litter and grow tall enough so that little light reaches the forest floor even with little gaps between trees. White pines cannot regenerate in their own shade.

Strongly Supported Conclusions

In a forest of mature white pines, it is unlikely that any adjacent pines differ widely in age.

the ages of the trees in the stand do not differ from each other by much more than the length of time it takes a white pine to grow to maturity

This is strongly supported because we know that mature white pines next to each other leave so little sunlight on the forest floor that white pines cannot regenerate. This would prevent young trees from emerging where pines are already mature.

the land on which the stand is now growing had been cleared of all trees at the time when the first of the white pines started growing

This is unsupported because it is not required that all white pines are cleared for new ones to grow. The stimulus only tells us that stands of mature white pines prevent regeneration.

competition among the trees in the stand for sunlight will soon result in some trees’ dying and the stand thus becoming thinner

This is unsupported because even though the competition for sunlight may prevent new white pines from growing between mature trees, we have no reason to suspect that already mature trees will compete with each other for sunlight.

other species of trees will soon begin to colonize the stand, eventually replacing all of the white pines

This is unsupported because the stimulus provides no information on other trees outcompeting stands of mature white pines.

any differences in the heights of the trees in the stand are attributable solely to differences in the ages of the trees

This is unsupported because we don’t know that there aren’t other factors like rain or nutrition that contribute to height differences.

LSAT 106 – Section 2 – Question 13

LSAT 106 - Section 2 - Question 13

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LSAT PrepTest 106 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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