The FDA (Food & Drug Administration) hires many people with science degrees. What may be one of the responsibilities of someone who works there? Group of answer choices A. Determining if food in America is foreign. B. Checking to make sure illegal drugs are not coming into the United States. C. Investigating the effects of drugs, antibiotics, and agricultural chemicals on animals. D. Determining the percentage of people who take antibiotics and other drugs with food at meal times.

Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected. b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans. c) an influenza virus gains new sequences of dna from another virus, such as a herpesvirus; this enables it to be transmitted to a human host. d) an animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.