Choose all the answers that apply. Earth is . a perfect sphere the only planet with a moon flatter at the poles the only known planet able to support life getting fatter around the equator

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.