[問題] 新pp2 CR- 100 (GWD變形)
Lyme disease is caused by a bacterium transmitted to humans by deer ticks.
Generally, deer ticks pick up the bacterium while in the larval stage by
feeding on infected white-footed mice. However, certain other species on
which the larvae feed do not harbor the bacterium. If the population of
these other species were increased, more of the larvae would be feeding on
uninfected hosts, so the number of ticks acquiring the bacterium would likely
decline.
Which of the following would it be most important to ascertain in evaluating
the argument?
A. Whether populations of the other species on which deer tick larvae feed
are found only in areas also inhabited by white-footed mice
B. Whether the size of the deer tick population is currently limited by the
availability of animals for the tick's larval stage to feed on 是否deer tick的
C. Whether the infected deer tick population could be controlled by
increasing the number of animals that prey on white-footed mice
D. Whether deer ticks that were not infected as larvae can become infected as
adults by feeding on deer on which infected deer ticks have fed
E. Whether the other species on which deer tick larvae feed harbor any other
bacteria that ticks transmit to humans
題目是說 因為其他品種的幼蟲也會跟deer ticks搶東西吃,所以其他品種
數量增加,那麼disease就會變少嗎? 不知道理解是否正確?
請問一下為何是答案B 不是C
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