Based on the phylogenetic tree above, which two species are most closely related? Choose 1 Choose 1 (Choice A) A Wild boar and angus cattle (Choice B) B Pygmy hippopotamus and white-tailed deer (Choice C) C Alpaca and blue whale

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.