Question

The graph shown above is from one of the most well-known and on-going ecological studies ever performed. Isle Royal National Park, an island on Lake Superior, keeps data of populations of wolves and moose living there. The moose are a major food source for the wolves.

Answer 1

The answer might be D

Answer 2

Based on the graph, the correct answer is D) The wolf carrying-capacity rises as moose populations increase, but with a delayed effect.

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