Biology, 21.09.2019 05:00, tanoah7623

The precambrian time period is segmented into very few parts because: . a.. the fossil record is scarce. b.. life did not exist. c.. cyanobacteria were the only life form. d.. volcanic activity ruined the fossil record.

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The precambrian time period is segmented into very few parts because: . a.. the fossil record is sc...