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Some studies have shown that red-backed salamanders (RBS) are scarce in areas with acidic soils and that those present in such conditions have smaller-than-average bodies. Explanations have included the possibility that young RBS are adversely affected by acidic soil, that adult RBS can sense and may avoid acidic soil conditions, or that loss of RBS prey
populations due to acidic soil could result in reduced RBS populations. Yet researchers found fairly high densities of large- bodied RBS at Lake Claire Watershed, where soil conditions are acidic. One hypothesis is that intraspecific geographical variation in acidity tolerance (i.e., local adaptation to an acidic environment) could exist for RBS. Previous studies showed potential local adaptation of some salamander species to acidity.
当前版本由371524c更新于2020-04-22 15:47:02 感谢由371524c对此题目的解答所做出的贡献。
E错，more persuasive 无中生有。
[填空 ]真题1300题 -8954
Having an intense and long-standing culture of (i)_____, the company understandably has a reputation as the supreme corporate (ii)_____. But even by these standard, the degree of secrecy surrounding the company’s most recent research is (iii)_____.
[阅读&逻辑 ]经典真题300篇 -8953
According to the passage, the “shifting-baseline syndrome” is a result of which of the following?
[阅读&逻辑 ]经典真题300篇 -8952
Which of the following is an assumption on which the argument depends?
[阅读&逻辑 ]经典真题300篇 -8951
According to the passage, Sinodonty and Sundadonty differ from one another in that Sinodonty
[阅读&逻辑 ]经典真题300篇 -8950
The passage implies that Turner’s conclusion regarding the origins of most Native American populations is based in part on which of the following findings?
[阅读&逻辑 ]经典真题300篇 -8949
In the argument given, the two highlighted portions play which of the following roles?
[阅读&逻辑 ]经典真题300篇 -8948
In the context in which it appears, “appreciation of” most nearly means
[阅读&逻辑 ]经典真题300篇 -8947
According to the passage, critics approach Jane Austen’s work in biographical or historical ways for which of the following reasons?
[阅读&逻辑 ]经典真题300篇 -8946
Which of the following can be inferred regarding the case of Baker v. Carr?
[阅读&逻辑 ]经典真题300篇 -8945
The author of the passage uses the analogy of the archaeology most probably in order to
[阅读&逻辑 ]经典真题300篇 -8944
It can be inferred that the author of the passage would agree with which of the following claims about The Cry?
[阅读&逻辑 ]经典真题300篇 -8943
The passage presents which of the following as evidence in favor of Fielding and Collier’s having collaborated in writing The Cry?
[阅读&逻辑 ]经典真题300篇 -8942
Which of the following, if true, most strongly supports the proposed explanation?
[阅读&逻辑 ]经典真题300篇 -8941
Which of the following most logically completes the argument?
[阅读&逻辑 ]经典真题300篇 -8940
The primary purpose of the passage is to
[阅读&逻辑 ]经典真题300篇 -8939
Which of the following, if true, most logically completes the argument?
[阅读&逻辑 ]经典真题300篇 -8938
Which of the following can be inferred about the studies mentioned in the highlighted portion of the passage?
[阅读&逻辑 ]经典真题300篇 -8937
In the context in which it appears, “ordered” most nearly means
[阅读&逻辑 ]经典真题300篇 -8936
According to the passage, which of the following statements about ant interactions is true?
[阅读&逻辑 ]经典真题300篇 -8935
The author of the passage mentions conservatives in the highlighted sentence primarily in order to