How did the population of prehistoric people differ from those after the neolithic revolution?

Which of the following was a similarity between classical mesoamerican and south american civilizations ?

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply

As the result of a conflict between british troops and a colonial militia in massachusetts