Final answer:
The passage suggests three key aspects of Iroquois culture: corn, beans, and squash importance, ceremonial practices, and the use of creation myths.
Step-by-step explanation:
The passage suggests three key aspects of Iroquois culture. First, corn, beans, and squash are important to Iroquois culture as evidenced by the mention of the three sister plants and their significance in the ceremony. Second, Iroquois ceremonial practices include singing and using tobacco as a way to give thanks. Lastly, the passage implies that the Iroquois use creation myths to help explain their cultural practices, such as the myth of the plants growing from their mother's grave.
Learn more about Iroquois culture