I need assistance with a History essay...

Compare and contrast political and economic effects of Mongol rule on the following regions:

Russia
China

Address all parts of the question, make relevant and direct comparisons, and substantiate your thesis with appropriate historical evidence.

The rubric is out of 7 points. Due by 10 PM Western time Sunday night; the thread will be closed around then. I don't know much about anything in regards to the Mongols..I thought I knew what I was talking about but received a 2. I think I slipped up on the political portion (this is a rewrite of an in-class essay). Any help is greatly appreciated. Post here.