Which of these best describes the purpose for "hands-only" CPR? Hands-only CPR is better and more effective than full CPR and is now the best way to provide CPR for any patient by any responder
Hands-only CPR reduces risk of liability and increases oxygenation better than CPR with mouth-to-mouth resuscitation
Hands-only CPR is now the only method for providing CPR regardless your level of education and expertise
Hands-only CPR was designed for those who are not trained or feel uncomfortable delivering mouth-to-mouth breaths. It doesn't replace traditional CPR.

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.