Answer:
Early Native American civilizations in Mesoamérica and South America relied on a variety of sources of food to sustain themselves, including plant crops and animal hunting and fishing. Some of the most important crops grown in these regions included corn, beans, and squash, which formed the basis of the native diet in many areas. In addition, early Native Americans in these regions also hunted and fished for a variety of animals, including deer, turkey, and various species of fish.
In contrast, early Native Americans in North America relied more heavily on hunting and gathering for their food, as the climate and environment in this region was not as conducive to the cultivation of crops. Native Americans in North America hunted a wide range of animals, including bison, deer, and elk, and they also gathered a variety of plants and berries for food.
Overall, the sources of food for early Native Americans in Mesoamérica and South America were more diverse and included both plant crops and animal hunting and fishing, while the sources of food for early Native Americans in North America were more heavily focused on hunting and gathering. These differences were largely due to the different environments and climates in these regions, which influenced the availability of different types of food.