How have arctic tundra herbivores adapted to their ecosystem? (Select all that apply.) They have extra fur to protect against the cold. They migrate to the south during the cold months. They can change their internal temperatures when needed. They can survive on short plants, mosses, and lichens.

The native americans had what kind of economy?

How long ago was the fall of rome (in years)

Match the following: 1. empirical the belief that an idea should be evaluated based on how it works 2. fundamentalism knowledge based on observation and experiment rather than theory 3. obtrusive to intentionally force ideas or intrude on others 4. pragmatism not religious or spiritual in nature 5. secular a religious doctrine that emphasizes a return to rigid principles