Students are able to observe how environmental changes (antibiotics) affect the growth of E. coli. They are able to use the "F" test for statistical analysis. Students can explain that E. coli is a common rod-shaped intestinal bacterium. It lives in a mutualistic relationship with humans where it benefits from the warmth, shelter, and nutrients provided by the colon an din return makes vitamin K and sodium.
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- Marina L., Special Education Teacher