Supplemental Quiz

1. Consider the human host a biosphere for microbes. Define the biosphere with respect to communities, populations, niches, etc. Be sure to explain food cycling, resource sharing and interactive relationships. How does the biofilm concept apply in this model?

2. What special characteristic of chlorophyll results in energy transfer?

3. Design an experiment that uses innocuous microbes to control pathogenic microbes. How might this be used to prevent disease transmission by food and water?

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