Modes of Speciation. Modes of speciation. There are different modes that can lead to the formation of new species: Sympatric and Allopatric speciation. Sympatric speciation. A single population divides suddenly into two reproductively isolated groups within the same geographical area .
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Many plants are able to reproduce both sexually and asexually. If an individual plant has a mutation that prevents successful sexual reproduction, it may be
able to reproduce asexually.
This could also explain the lack of transitional species, because the changes are significant