23. Speciation
Introduction to Speciation
23. Speciation
Introduction to Speciation
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- Multiple ChoiceWhen gene flow between two populations ceases, the potential for __________ exists.1254views3rank
- Multiple ChoiceBird guides once listed the myrtle warbler and Audubon's warbler as distinct species that lived side by side in parts of their ranges. However, recent books show them as eastern and western forms of a single species, the yellow-rumped warbler. Apparently, the myrtle warbler and Audubon's warbler __________.1506views
- Multiple ChoiceImagine that part of a population of South American finches is blown by a storm onto an island far offshore and manages to survive and reproduce there for a period of 10,000 years. After that period, a climate change results in lower sea levels and the reconnection of the island with the mainland. Members of the formerly isolated island finch population can now interact freely with members of the original mainland population. Which of the following observations would, by itself, lead you to conclude unequivocally that the island finch population had evolved into a distinct species, according to the biological species concept?1438views
- Multiple ChoiceAt which point in the adaptation of a population is it clear that speciation has occurred?936views