Final answer:
Beringia was the landmass connecting Asia and North America during the last Ice Age, which served as a land bridge for human migration.
Step-by-step explanation:
The landmass that existed between Asia and North America during the last Ice Age is known as Beringia. It was a section of low-lying land that connected modern-day Alaska and Russia, which is now submerged under the Bering Strait. During the time when the Earth was experiencing its most recent ice age, large areas that are currently underwater were exposed, making them dry land. Beringia served as a land bridge, enabling humans to migrate from Asia into the Americas. This migration was possible because sea levels were much lower, allowing people to walk across what is today the floor of the Bering Strait. Although Beringia is no longer visible above sea level, its existence played a critical role in the patterns of human migration and the settlement of the Americas.