Elk in Yellowstone National Park were overgrazing the willow plant populations. Wolves were reintroduced and the willow plant population recovered. In three sentences, state two facts, make an observation, and make an inference.(4 points)

Answer 1

Fact 1: Elk populations in Yellowstone National Park increased significantly due to the absence of natural predators.
Fact 2: The reintroduction of wolves led to a decrease in elk populations, allowing for recovery in willow plant populations.
Observation: The recovery of willow plants demonstrates the impact of predator-prey dynamics on ecosystem health.
Inference: The presence of wolves not only helps control elk populations but also supports the regeneration of vegetation, illustrating the importance of biodiversity in maintaining balanced ecosystems.