Nelis7a0Julingchical Nelis7a0Julingchical

14-01-2017
Biology

contestada

Which best characterizes the precambrian era?
a.abundant plants and animalsb.dinosaursc.small, one-celled organisms and primitive jellyfishd.extensive mountain building?

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deleonsisi deleonsisi

14-01-2017

i'd say that the answer is b.

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