Suppose you want to isolate viruses that infect marine cyanobacteria. Describe how you would do that compared to using the kinds of agar plates you were exposed to in this first laboratory session. Describe what parts of the procedure specifically must be changed. Would you need to consider incubation temperature differently? What kind of medium would you use to grow your cyanobacteria and phages?

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.