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Unformatted text preview: understanding how species can diverge normally and yet produce low fitness hybrids? 7) Why are fish a paraphyletic group? 8) Why might prezygotic isolation be stronger in sympatry than in allopatry? 9) Make up your own set of DNA sequences from four species, one of which is an outgroup, and reconstruct the most parsimonious phylogenetic tree....
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- Spring '09