How did the japanese people change buddhism after it came to japan

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?

What from the columbian exchange had perhaps the biggest impact on the world?

•the impact of enlightenment ideals on the development of economic, political, and religious structures in the western world