You are constructing a phylogeny of a hypothetical group of insects. Several of the species have a pattern of four veins on the forewing while another group of species has a pattern of six veins. The three outgroups in your analysis all have a pattern of six veins. From this you can conclude:
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Step 1: The outgroups have six veins, and the ingroup has both four and six veins. Show more…
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