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Health, 23.06.2019 04:31
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.
Answers: 1
Health, 23.06.2019 18:00
The french parenting style is somewhat different. they believe in maintaining , which means a framework or boundary. parents draw firm boundaries for children, and they expect children to abide by their rules and regulations. at the same time, they offer some degree of to their children.
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Health, 23.06.2019 20:40
The average ages at which an individual displays certain abilities are known as
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Deaths due to lifestyle diseases have declined since the early 1900s. true or false...
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