Look at the slide from an oral presentation about fossils. a slide that reads, "fossils: how they us understand the past." there is a photo of a fossil. what should be added to this slide to make it more effective? an audio track an instructions list the speaker’s notes a caption

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.