ADMICRO

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 46 to 50.
University researchers have taken samples from a preserved dodo specimen in an (46)         to uncover the extinct bird‟s family tree. They worked with the British Natural History Museum to collect and study genetic material from large number of specimens: a preserved dodo, the extinct solitaire bird, and 35 kind of living pigeons and doves. Their analysis (47)           the doo and the solitaire to be close relatives with the Nicobar pigeon, their nearest living relative. The dodo lived on Mauritius in the Indian Ocean. It was a flightless bird, bigger than a turkey. By 1681, all dodos had been (48)      by hungry sailors. The    solitaire, which looked a bit like a dodo, had gone the same way by 1800. By extracting short pieces of the dodo‟s DNA and (49)        these with the DNA of living birds, the scientists were able to deduce when the dodo evolved away from its relatives into a separate entity. The scientists can now (50)       assume that the dodo developed its distinctive appearance and features as a result of its geographical isolation. They are now convinced that it separated from the solitaire about 25 million years ago, long before Mauritius became an island.
(47).................

Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án

ZUNIA12
ZUNIA9
AANETWORK