Which of the statements below regarding the evolution of biodiversity.pdf

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Which of the statements below regarding the evolution of biodiversity through time is INCORRECT? a) based on geochemical evidence it is hypothesized that life on earth originated between 3.8 and 4.0 billion years ago b) most the the species that have ever existed in earth are now extinct c) the fossil record is a biased sample that leads to underestimation of diversity at any given time d) the molecular clock hypothesis suggest that DNA sequences evolve at a constant rate, and that generic differences between species are directly related to the time since they shared a common ancestor e) prior to the current mass extinction event, biodiversity has been steadily and uniformly increasing for the last 600 million years.

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