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Bromandude12 Bromandude12
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6 years ago
Which of the observations below were made by Darwin?
 
  a. Highly similar species are clustered in time and space.
  b. Climate and physical conditions are insufficient to explain the geographic clustering of similar, closely related species.
  c. Geographic features seem to play an important role in the clustering of similar, closely related species.
  d. B and C, but not A.
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