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From Quotes by Ernst Mayr
- A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature.
- According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence…
- Given the fact of evolution, one would expect the fossils to document a gradual steady change from ancestral forms to the descendants. But this is…
- A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote…
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