Trace metals such as manganese that catalyze the formation of HMF were found to be present in all of the commercial HFCS samples that were studied by LeBlanc. How can this observation be explained?

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.