Moving into New Environments

Which statement most accurately summarizes the main point of the provided notes?

• A significant wave of migration from Africa 60,000 years ago eventually led to the global spread of Homo sapiens.

• The initial migration of Homo sapiens out of Africa happened quickly and was followed by slower settlement.

• The migration of Homo sapiens from Africa began 60,000 years ago and was a rapid, one-time event.

What was a key reason Homo sapiens were able to successfully migrate into Southwest Asia 70,000 years ago?

• They were following herds of animals that were being pushed out of Africa by drought.

• A "green corridor" had opened up, providing a warm climate with plentiful food sources.

• The region's climate was cold and arid, which was easier for them to adapt to.

Which statement correctly describes the migratory pattern of Homo sapiens?

• Migration into Australia and Europe happened at the same time.

• The journey to Siberia occurred after humans had already reached Europe.

• The migration to Europe happened before the migration to Australia.

How did the Beringia land bridge allowed humans to travel from Asia to North America?

• As the climate warmed, glaciers melted, revealing a new land bridge.

• During the Ice Age, volcanic activity created a land bridge between the two continents.

• The freezing of ocean water lowered sea levels, exposing a landmass that connected the continents.

Choose 2 answers: Which of the following is a possible route Homo sapiens used to migrate to Central and South America?

• Traveling by boat from Australia directly to Central America.

• Walking across the Bering land bridge from Asia to North America and then traveling south after the glaciers melted.

• They only used the land bridge because boats were not yet invented.

Which statement is true?

• The migrations of early humans followed the migration routes of large animals, such as the woolly mammoth and giant ground sloth.

• The migrations of early humans was based on the search for warmer climates as the Ice Age began to end.

• The migrations of early humans was based on the need to find new sources of water as glaciers melted and flooded their previous settlements.

Which of the following best describes the two main theories for why the saber-toothed cat and other megafauna became extinct?

• A shift in Earth's magnetic poles that disoriented the animals, along with the rise of new, more efficient predators.

• Overhunting by human hunters and significant changes in climate that affected their lifestyles and habitats.

• A meteor impact that caused a global winter and a widespread disease that affected only large animals.