B. Decrease. The shrew population is dependent upon the grasshoppers as a prey item. A decrease in the available prey would result in a decrease in the predator population due to lack of resources to support the current population.
Https://www3.epa.gov/climatechange/kids/impacts/effects/ecosystems.html
this link might help you
Watching adding notes, correcting, and overall being a part of the project he/she is working on.
Sun, flowers, mouse, snake, hawk
