Epidemiology is defined as the study of diseases among populations. How does epidemiology relate to microbiology? What is the difference between an epidemiologist and a microbiologist? If you were an epidemiologist interviewing someone with an infectious disease that could lead to an epidemic, what are some questions you might ask?

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.