Tuesday, September 17, 2013

Viruses, Bacteria, and Evolution


Watch the flu video and answer the questions below:

1. How does variation in influenza arise?
2. How does this variation increase the chances of a flu population’s survival in changing environments?  

Read the article on bacteria resistance and answer the questions below:


Bacteria Reading

1. On the cellular level, how do antibiotics work to stop the growth of bacteria?
2. What are some ways that bacteria work to stop the effectiveness of antibiotics?
3. Since bacteria reproduce asexually, how do they diversify their gene pool?
4. What are some ways that we contribute to the ineffectiveness of antibiotics?
5. How does this all tie in with what we’ve talking about in class (evolution, natural selection, survival of the fittest, etc.)?