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Mathematics 17 Online
OpenStudy (anonymous):

The beginning of life on land is marked by which era?

OpenStudy (anonymous):

The Paleozoic Era; It started off with life in the ocean, but towards the later part of this era, life began to move onto land.

OpenStudy (anonymous):

Also, this isn't the History section, so please try to ask your questions in the proper subject. :)

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