Charles Darwin studied finches on the Galapagos Islands. While the finches on all the islands came from the same ancestors, the distance between the islands was too great to allow finches from different islands to interbreed. Over time, the size of the finches on the different islands remained the same, but the shape and size of their beaks changed, as shown here. This adaptation helped the finches find food on their particular island. The change in the size and shape of the finches’ beaks was MOST LIKELY caused by
A)
geographic isolation
B)
a change in climate.
C)
endangerment of the species.
D)
a decrease in the mutation rate.
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pooja195 (pooja195):
this is incomplete
OpenStudy (anonymous):
@confluxepic
OpenStudy (anonymous):
I fixed it
OpenStudy (confluxepic):
What do you think it is? @HappySprout
OpenStudy (anonymous):
I am thinking C
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OpenStudy (anonymous):
@confluxepic
OpenStudy (confluxepic):
No.
OpenStudy (anonymous):
Is it D?
OpenStudy (confluxepic):
It never says that they were endangered. It only says that they were separated on different islands.
OpenStudy (anonymous):
Is it D?
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OpenStudy (confluxepic):
No.
OpenStudy (confluxepic):
A decrease in mutation rate has no connection to them being on different islands.
OpenStudy (confluxepic):
What are islands and continents?
OpenStudy (anonymous):
geography
OpenStudy (anonymous):
Oh so it is A because they were on diffrent islands!
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