GRE Text Completion Question 2951
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Source: 1992
Some paleontologists debate whether the diversity of species has (i)_____ since the Cambrian period, or whether imperfections in the fossil record only suggest greater diversity today, while in actuality there has been either(ii)_____ or decreased diversity.
- A changed.. escalation
- B increased. stasis
- C expanded.. discontinuity
- D declined.. reduction
- E improved.. deviation