Answer Happy

Which of the following phylogenetic patterns best supports the hypothesis that Atlantic and Pacific snapping shrimp on either side of the isthmus of Panama speciated allopatically through vicariance? O Species on the Pacific side are more basal than species on the Atlantic side. The entire Atlantic clade is sister to the entire Pacific clade. Each species on the Atlantic side is sister to a species on the Pacific side Species on the Atlantic side are more basal than species on the Pacific side. Question 5 1 pts Males of a species of Drosophila compete for females by rearing up on their back legs and grappling with one another to stake out territories. A mutation arises that gives males large hammer like heads that they can use for combat. Grappling males and head-butting males do not engage in combat with one another and females develop preferences for one or the other combat style, leading to isolation between the two groups. This is an example of: Allopatric speciation by vicariance with divergence driven by natural selection Sympatric speciation with divergence driven by natural selection Allopatic speciation by dispersal, with divergence driven by sexual selection Allopatric speciation by dispersal, with divergence driven by natural selection Sympatric speciation with divergence driven by Sexual selection