How did people get to the new world

crossing the bering land bridge

Explanation:

the longstanding theory is that the bering land bridge been the clearest connection between asia and north america, up in the artic, and it only appears when ice is locked up on land and sea levels drop. it's the only place where you could walk from one side to the other.

the unsaturated fatty acid is a fat consist of one or more double bond in the fatty acid chain. if it contains one double bond then called as monounsaturated fatty acid however if, it contains more than one bonds called as a polyunsaturated fatty acid. true fatty acids are called unsaturated fatty acids as it reduces the risk of high blood cholesterol and good for health.