Author: sinhap07
Posted: Thu Oct 05, 2017 8:25 am (GMT -8)
For the same passage, I am not clear why the OA for this question is E. The author states that the studies till now have been unconvincing. Pls refer to para 1. However, how can we infer that scientists themselves were uncertain?
The passage suggests which of the following regarding the climbing ability of Archaeopteryx?
A. Its ability to climb trees was likely hindered by the presence of incipient feathers on its forelimbs.
B. It was probably better at climbing trees than were its maniraptoran dinosaur cousins.
C. It had certain physical adaptations that suggest it was skilled at climbing trees.
D. Scientists have recently discovered fossil evidence suggesting it could not climb trees.
E. Scientists are uncertain whether it was capable of climbing trees
Posted: Thu Oct 05, 2017 8:25 am (GMT -8)
Geva@EconomistGMAT wrote:
also, D is clearly a piece of evidence used to undermine the hypothesis - the earliest known bird did not have trees high enough to glide from, so it probably developed flight in a different way. Once you have D, there really is no reason to go and talk yourself into choosing a trap answer choice such as C.
Hi tgou008 wrote:
It's not a tough choice, unless you make it one by second guessing yourself instead of aggressively eliminating. ldoolitt got it right: the fact that small animals can climb does not in and of itself undermine the arboreal hypothesis. For C to be correct, it needs to present the entire undermining fact: that many small animals can climb but cannot fly.Wow this is a really tough choice between C and D, and I really don't think I can call it either way.
What is the source for this question and what is the OA?
Thanks
What is the source for this question and what is the OA?
Thanks
also, D is clearly a piece of evidence used to undermine the hypothesis - the earliest known bird did not have trees high enough to glide from, so it probably developed flight in a different way. Once you have D, there really is no reason to go and talk yourself into choosing a trap answer choice such as C.
For the same passage, I am not clear why the OA for this question is E. The author states that the studies till now have been unconvincing. Pls refer to para 1. However, how can we infer that scientists themselves were uncertain?
The passage suggests which of the following regarding the climbing ability of Archaeopteryx?
A. Its ability to climb trees was likely hindered by the presence of incipient feathers on its forelimbs.
B. It was probably better at climbing trees than were its maniraptoran dinosaur cousins.
C. It had certain physical adaptations that suggest it was skilled at climbing trees.
D. Scientists have recently discovered fossil evidence suggesting it could not climb trees.
E. Scientists are uncertain whether it was capable of climbing trees