Final answer:
The statement that the Mississippian Native Americans were known for growing tomatoes is false; they were known for corn-based agriculture and moundbuilding.
Step-by-step explanation:
The Mississippian Native Americans were not known for growing tomatoes; therefore, the statement is false. The Mississippian culture, which lasted from around 500 to 1400 CE and originated in the Mississippi River Valley, was heavily reliant on agriculture. This culture is particularly noted for its large-scale, corn-based agriculture.
They grew a variety of crops, including maize, beans, squash, and sunflower -- staple foods that supported a dense population and the development of specialized artisans. Despite the wide range of plants domesticated in the Americas during this period, tomatoes were not among the crops cultivated by the Mississippians. These Native Americans are also well-known for their moundbuilding, which included earthworks used for burial mounds and as religious centers within the Southeastern Ceremonial Complex.