Multiple choice

Darwin's key hypothesis based on evidence from the Galapagos Islands was

  1. different species on islands evolved from a common ancestor

  2. mockingbirds were unique to due to the proximity to the sea

  3. one species evolved from many species on the islands

  4. finches are the only organism that evolved
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A Correct answer
Explanation

Darwin observed that species on the Galapagos Islands were similar to those on the mainland but had distinct differences, leading him to hypothesize they shared a common ancestor and evolved to fit their specific island environments.

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