Question

which of these factors would cause an increase in a prey population? a decrease in predators an increase in prey diseases poor climate a lack of precipitation (chart of wolves and moose population over years)

Explanation:

To determine what increases prey population, we analyze each factor:

• A decrease in predators means fewer prey are killed, allowing prey numbers to rise (predator - prey dynamics).
• An increase in prey diseases would kill more prey, reducing the population.
• Poor climate reduces resources (food, shelter), harming prey survival/reproduction.
• A lack of precipitation also limits resources (e.g., water, plant growth for herbivores), decreasing prey population.

So, a decrease in predators is the factor that increases prey population.

Answer:

a decrease in predators