Praxis 5005 Practice Test Practice Question
The preceding food web represents the feeding relationships in a certain ecosystem. Based on the food web, an increase in the population size of the grasshoppers will most likely result in an increase in the population size of which of the following?
Correct Answer: D
Rationale: An increase in the grasshopper population provides more food for predators, particularly the owls, leading to a potential rise in their numbers.
Option A, the grasses, would likely decrease due to increased herbivory from the grasshoppers, not increase.
Option B, the rabbits, may not directly benefit from grasshoppers, as they primarily feed on grasses and other plants, which could be negatively impacted by more grasshoppers.
Option C, the foxes, may see a slight benefit from increased prey but are more reliant on smaller mammals than on grasshoppers or owls, making them less likely to show a significant population increase.
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