An unusually warm spring leads to an increase in the number of mice in a fertile valley. One result of this population explosion is the loss of farmers' crops due to consumption by the mice. What would be another likely result of the population increase of the mice?
Birds of prey that eat mice will become more numerous.
Mice will fill a different niche in the ecosystem.
The following year the spring will be warm again.
Animals that compete with mice will adapt to find new niches

The correct answer is A. Birds of prey that eat mice will become more numerous.

Explanation:

An increase in the population of mice implies there is increased availability of food for mice predators including some birds of prey. At the same time, more food for birds of prey would help this species to better survive and reproduce, which would likely increase the number of birds of prey after some time. Moreover, the increase of mice and birds of prey occurs because these species belong to the same food chain and an increase/decrease in one species affects the other. According to this, the expected result is "Birds of prey that eat mice will become more numerous".

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