Juan really wants to become a doctor. he continues working toward his goal, despite the fact that he has trouble with the course work and has difficulty getting admitted to college and paying for his education. john's willingness to keep working toward his goal, despite the setbacks, is an indication that juan hasselect one: a. grit. b. external motivation. c. internal motivation. d. natural talent.

Which of the following is an argument against buying local fruits and vegetables?

During the sixteenth, seventeenth, and eighteenth centuries, the mentally ill were housed in

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.