38Why did the economy of Native Americans living the Arctic cause families to band together? They held potlatch celebrations to share their many resources.They were able to grow plenty of food in the summer.They had to travel long distances to hunt seals.When food was scarce, the families shared seal meat.
39D. When food was scarce, the families shared seal meat.
40What are some of the unique features of an early civilization you have read about?
41In the Mayan civilization, powerful kings ruled In the Mayan civilization, powerful kings ruled. The Olmec developed a 365-day calendar. The Mayans developed a counting system that included zero.