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During which period did the first land vertebrates appear? A. Devonian B. Mississippian C. Pennsylvanian D. Permian
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Dec 15, 2019
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During which period did the first land vertebrates appear?
A. Devonian
B. Mississippian
C. Pennsylvanian
D. Permian
Biology
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Bodger
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the answer is D. permian
DoubleOrt
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Dec 19, 2019
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