1. Describe three types of cellular differentiation in cyanobacteria: hormogonia, akinetes, and heterocysts. [cyanobacteria]
2. Why do bacteria prey on other bacteria? Contrast the strategies utilized by Bdellovibrio and Myxococcus. What do they do differently? [Bdellovibrio; Myxobacteria]
3. Describe a scheme of how to apply microbes for the degradation of oil spills? [oil-degrading bacteria]
4. If a species of homofermentative lactic acid bacteria, a species of heterofermentative lactic acid bacteria, and a species of propionic acid bacteria were separately grown on a well-buffered medium with the same initial concentration of glucose, which bacteria would probably grow to the higher population number and why? [lactic acid producers; propionic acid bacteria]