Lived in N.A. when? in the beginning they weren't "indians". They were probobly migrating from Siberia, so were they Siberians? Neither land masses nor peoples had names; the question is moot.
Narrow your question to a time period.
More nomadic
Indians probably did for a long time...
all the indians that lived
mostly mian of the native americans live in North America.
The paleo Indians were Native Americans that lived on North America during the Paleolithic Era. They have been absorbed by populations around them.
The plains cree lived in the the great plains which now is Montana
the Indians
The Pawnee Indians lived in northern Kansas and Nebraska.
No, they did not. The teepee is a home used by plains Indians in North America. The Aztecs lived in South America and they used stone and wood to build their houses.
mayans
Possibly Buffalo as a food animal and a source of hides and bones.
As many as 80 million Indians lived north of mexico in the 1400s.