The author of the passage would most likely agree with which one of the following statements about Haffer's hypothesis?
MinervaJune 1, 2019
A vs C
Hi, could you please explain why A doesn't work? I was torn between the two and eventually went for A because it says in the passage that Haffer's hypothesis accounts for both the species distribution and the amount of species diversity, and I took that to mean that it was a complete explanation of the phenomenon. Thanks!
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There are several lines of the passage which suggest that C is the stronger answer choice.
Lines 45 to 47: "Haffer's hypothesis appears to explain the distribution of species as well as the unusual species diversity."
Lines 54 to 61: "Although no conclusive proof has yet been found to support Haffer's hypothesis, it has led other researchers to gauge the effects of climatic changes, such as storms and flooding, on species diversity in the Amazon basin. Their research suggests that climatic disturbances help account for the splendid diversity of the Amazon rain forest today."
The author states that Haffer's hypothesis APPEARS to explain the distribution and diversity and also notes that no conclusive proof has yet been found Haffer's hypothesis. While this does suggest that the explanation is intriguing, as noted by A, the fact that it has not been verified limits the author's ability to conclude that it is a complete explanation of the high rate of species diversity in the Amazon.
Additionally, the author writes that Haffer's hypothesis has spurred further research on the subject and that it is the work of these researchers that suggests that climatic disturbances HELP account for the species diversity. There are two important things to note here. Firstly, the hypothesis spurring further research indicates that Haffer's hypothesis does not offer a complete explanation of the phenomenon. Secondly, the author writes that the research inspired by Haffer's hypothesis helps to account for the species diversity. This means that climatic changes are not the only factor influencing the level of species diversity in the Amazon, therefore, not providing a complete explanation of the phenomenon.
On the other hand, as we can see from our analysis above, the author notes that Haffer's hypothesis has not been verified and has influenced further research on species diversity in this region. This is directly restated by C, making it the correct answer choice.
Hope this is helpful! Please let us know if you have any further questions.
MinervaJune 4, 2019
This was a great explanation, thank you so much!
RaviJune 7, 2019
@Minerva, let us know if you have any other questions!
