Nhận biết (M1)

Like many other fruit-eating birds on the Hawaiian island of Oahu, the hwamei helps forest plants spread by carrying seeds from the plants' fruits to different locations (a process called seed dispersal). Ecologists have found that fruit-eating birds disperse some seeds from plants native to Oahu that are at risk of extinction in the wild, such as the kolea lau nui tree, but disperse many more seeds from bishopwood trees, coralberry shrubs, and other non-native plants that are already widespread. Believing that the great availability of fruit from non-native plants might be making birds less likely to eat fruit from native plants, the ecologists conclude that __________

Which choice most logically completes the text?

• A.

  vulnerable native plants would probably benefit if the populations of non-native plants, such as the bishopwood tree and coralberry shrub, were reduced.

• B.

  roughly equal numbers of seeds from native and non-native plants would be dispersed if the populations of fruit-eating birds, such as the hwamei, increased.

• C.

  the hwamei and other fruit-eating birds on Oahu would likely favor fruits from native forest plants if native and non-native plants were equally widespread.

• D.

  the kolea lau nui tree, the bishopwood tree, and the coralberry shrub are the plant species on Oahu most in danger of going extinct in the wild.