Final answer:
The Rio Negro is the tributary of the Uruguay River that bisects Uruguay, influencing its agriculture, urban development, and integration into global trade networks like Mercosur.
Step-by-step explanation:
The tributary of the Uruguay River that bisects Uruguay is the Río Negro. This river is a significant geographical feature of the country and plays a vital role in its agriculture, commerce, and urban development. The Río Negro flows from east to west, dividing Uruguay into two distinct regions before it joins the Uruguay River.
Not only does it provide water for farming and energy production, but it also contributes to the overall urbanization and modernization of Uruguay, particularly in the context of its integration into global trade networks via organizations like Mercosur.