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  3. The Ediacara fossil formation, which contains the oldest known animal fossils, consists exclusively of soft-bodied forms. Althou

The Ediacara fossil formation, which contains the oldest known animal fossils, consists exclusively of soft-bodied forms. Althou

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问题     The Ediacara fossil formation, which contains the oldest known animal fossils, consists exclusively of soft-bodied forms. Although named after a site in Australia, the Ediacara formation is worldwide in distribution and dates to Precambrian times. This 700-million-year-old formation gives few clues to the origins of modern animals, however, because paleontologists believe it represents an evolutionary experiment that failed. It contains no ancestors of modern animal groups.
Which of the following is NOT mentioned in paragraph 4 as being true of the Ediacara formation?
选项 A、It contains fossils that date back to the Precambrian period.
B、It contains only soft-bodied animal fossils.
C、It is located on a single site in Australia.
D、It does not contain any fossils of the ancestors of modern animals.
答案C
解析
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