Answer: According to history, the Native Americans contracted the diseases brought over from Europe by the first settlers, and since the Native's immune systems had never been in contact with these diseases, many died.
Short answer: American Indian populations were decimated by diseases brought by the Europeans.
Answer:
B. Powerful nations were meant to dominate weaker societies.
Explanation:
Why? because Darwinist believed that society should not protect it's weaker nations, but should have stronger/ powerful nations to survive and the weaker ( less fit ) to be excluded.