Answer:
Ben Franklin is saying, join all the colonies together and if they don't they would die if they are by them self. If you see all the snake's parts, they are separated and each one stands for a colony.
An important role or responsibility that passed form one person to another
Answer:
Those against manifest destiny were abolitionists and those who did not want to see the spread of slavery.
Explanation:
I would say mostly economic factors: common currency, common market, wide-scale trade among the countries. If one country is hit, the others will also suffer: this brings in the feeling of solidarity.
other than that, European culture is actually quite unified, with many shared valued, such as universal health care and religious freedom, yet connection to Christianity.