Bison is a food source for large secondary consumers in the prairie.
Explanation:
Bisons are herbivores, so they eat plants. This means they are first-order consumers as first-order consumers always eat producers. Producers are like crops or plants. So they aren't predators, decomposers or predators. They are probably food for secondary consumers as secondary consumers eat first order consumers.
When demand is extremely high, the price will not matter to the people in demand for it. So no matter the price (at this point in time) the demand will remain extremely high.