Nadine kept track of her activities for the same three days, using an activity tracking app on her smartphone. She calculated her average energy need (energy expenditure) and it was 1800 calories. Compare Nadine’s average daily intake (avg. of 3139 calories per day) to her average energy need. Is it likely that Nadine will lose weight, gain weight, or stay the same if she continues with her current eating & exercise habits?

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.