Aspotter stands near the lifter with his feet wide and hands near the lower back. he pays careful attention to the bar and makes sure the lifter does not fall backwards. this is most likely a spotter for
a.
an overhead press
b.
a dead lift
c.
a squat
d.
a bench press

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Foods that are required to be held hot must be

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.