Human Migration sthuff
When did the first people come to the Americas?
15,000-20,000 years ago by walking across the Bering Strait land bridge
Where did everyone originate from?
Africa
74,000 years ago
Bone tool and stone working technologies were made in Jwalapuram (Southern India), similar to Africa's
What caused skin to lighten up?
Caves and shadows that block the sunlight
Why don't people in central Asia have a clear race/nationality?
Central Asia is between the East and West, so it is mixed and not clear.
Why did Neanderthals go extinct?
Climate Change and competition with humans
What is believed to have caused people to first move out of Africa? Where did they go?
Climate change and extreme drought made Africa become dry. They migrated to the middle east (Asia).
25,000 years ago
Extinction of Neanderthals (same with Iberian Peninsula and Crimea)
200,000 years ago
Homo sapiens evolved in Africa
Why is Monteverdi, Chile called the finish line for humans? And when did humans get there?
It marked the end of human migration, the only other place to go is Antartica.
What's used to trace women's genetics?
Mitocondria DNA
15,000 years ago
Modern Humans crosses from Asia to North America and from there to South America. They crossed the Bering Land Bridge.
35,000 years ago
Modern Humans established in most of the Old World. The oceans were glaciers and the sea level dropped, leaving an isthmus (Bering Land Bridge) connecting Asia and North America.
40,000 years ago
Modern humans entered Europe from 2 routes: Turkey, along the Danube corridor into Eastern Europe, and the Mediterranean Coast
80,000-60,000 years ago
Modern humans migrated to Asia from Africa
45,000 years ago
Modern humans settled in Indonesia, Papua New Guinea, and Australia
How many languages are there?
Over 5,000
How does climate change affect physical characteristics?
Physicals characteristics are changed to adapt to climate change.
T or F: a Greek man can have similar Y chromosomes to an African man
T: race doesn't effect Y chromosomes
How do scientists know that humans originated in Africa?
They identify the marker mutations in DNA and compare it to humans that left and didn't leave Africa
What's used to trace men's genetics?
Y chromosomes
What's a marker?
a shared genetic code passed on (ATCG)