Step-by-step explanation:
According to the problem, the moose are the main prey for wolves on this isolated island. Now, notice that a food shortage resulting from wolves eating too many moose keeps the wolf population in check. This means that the predator-prey relationship controls the population size of both species because the predators keep the prey population under control and the size of the population of prey limits the number of predators an ecosystem can support.
We can conclude that the correct answer is:
Answer:
The relationship controls the population size of both species.