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devikeerthansr
GMAT 1: 650 Q47 V32
Posts: 215
12 May 2018, 12:10
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
66% (02:02) correct
34%
(02:09)
wrong
based on 919
sessions
History
Date
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Not Attempted Yet
Haffer's hypothesis appears to explain the distribution of species as well as the unusual species diversity.The ice age refuges would have protected existing species from extinction.But the periodic geographic isolation of related populations(there have been an estimated 13 ice ages to date) would have facilitated the development of new species as existing species on the lowlands adopted to changing climates.
The author mentions the number of ice ages in the paragraph in order to:
A.Provide proof that cooler and drier temperatures were primarily responsible for the distribution of species in the Amazon
B.Explain how population of species was protected from extinction in the amazon basin
C.Explain how most species were able to survive periodic climatic disturbances in the Amazon basin
D.Suggest that certain types of climatic disturbances cause more species diversity than other types of climatic disturbances
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
Source:
Crackverbal
The author mentions the number of ice ages in the paragraph in order to:
A.Provide proof that cooler and drier temperatures were primarily responsible for the distribution of species in the Amazon
B.Explain how population of species was protected from extinction in the amazon basin
C.Explain how most species were able to survive periodic climatic disturbances in the Amazon basin
D.Suggest that certain types of climatic disturbances cause more species diversity than other types of climatic disturbances
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
Source:
Crackverbal
12 May 2018, 12:25
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Haffer's hypothesis appears to explain the distribution of species as well as the unusual species diversity.The ice age refuges would have protected existing species from extinction.But the periodic geographic isolation of related populations(there have been an estimated 13 ice ages to date) would have facilitated the development of new species as existing species on the lowlands adopted to changing climates.
Below option explains the highlighted portion: [no of] geographic isolation = development of new species
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
Below option explains the highlighted portion: [no of] geographic isolation = development of new species
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
19 Sep 2018, 11:13
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srignz
Haffer's hypothesis appears to explain the distribution of species as well as the unusual species diversity.The ice age refuges would have protected existing species from extinction.But the periodic geographic isolation of related populations(there have been an estimated 13 ice ages to date) would have facilitated the development of new species as existing species on the lowlands adopted to changing climates.
Below option explains the highlighted portion: [no of] geographic isolation = development of new species
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
Below option explains the highlighted portion: [no of] geographic isolation = development of new species
E.Suggest that geographical isolation may have occured often enough to cause high species diversity in the Amazon basin
Option E suggests that the more number of ice ages means that more number of isolation, and more isolations would create more diverse species.. because there are multiple chances/isolations.
