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OpenStudy (gigi1103):
Which evolved during the Paleozoic Era? A. earth’s first land plants B. saber-toothed cats C. bacteria that could produce oxygen D. the first humans
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OpenStudy (gigi1103):
@kittycat123 can you help
OpenStudy (anonymous):
i think a
OpenStudy (gigi1103):
thanks
OpenStudy (anonymous):
check
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OpenStudy (anonymous):
just in case im wrong.
OpenStudy (gigi1103):
its right
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