Which theory do most scientists believe about the first inhabitants of North America? (1 point) Responses They walked across the frozen Bering Land Bridge. They walked across the frozen Bering Land Bridge. They swam across the Pacific Ocean. They swam across the Pacific Ocean. They sailed across the Atlantic Ocean. They sailed across the Atlantic Ocean. They walked across the frozen Hudson Bay Bridge.
Most scientists believe that the first inhabitants of North America walked across the frozen Bering Land Bridge.
Most scientists believe that the first inhabitants of North America walked across the frozen Bering Land Bridge.
The theory that most scientists believe about the first inhabitants of North America is that they walked across the frozen Bering Land Bridge. To determine this answer, you can refer to archaeological and genetic evidence.
Scientists have found numerous archaeological sites, such as tools, artifacts, and settlements, along the Bering Land Bridge and in Alaska. These sites suggest that humans migrated from Asia to North America through this land bridge, which connected present-day Russia and Alaska during the last Ice Age when sea levels were much lower. This land bridge allowed for the movement of animals and humans across the continents.
Furthermore, genetic studies have shown that Native American populations share genetic similarities with Asian populations, providing further evidence for the Bering Land Bridge theory. Genetic markers, like mitochondrial DNA and Y-chromosome analysis, indicate a common ancestry between indigenous peoples of North and South America and populations from Siberia and northeast Asia.
While other theories like swimming across the Pacific Ocean or sailing across the Atlantic Ocean have been proposed, the Bering Land Bridge theory is currently the most widely accepted explanation based on the available evidence.