Answer one of the following questions.  In your answer, plea…

Answer one of the following questions.  In your answer, please indicate which question you are answering. Describe 3 basic mechanisms bacteria use to infect the lower GI tract and cause gastroenteritis. Give an example of a bacterium that uses each one. Why does the CDC currently recommend Hep C screening for all adults?  (Describe 3 reasons.)

Ben and Jerry both live in Vermont. A new-farm-equipment dea…

Ben and Jerry both live in Vermont. A new-farm-equipment dealer in Vermont bought a new tractor from the manufacturer for $54,000 and sold it to Ben for $60,000. Later that year, Ben sold the tractor to Sydney for $40,000. By how much did these transactions contribute to U.S. GDP for the year? (Recall that GDP measures the market value of final goods…)