The process coevolution is a type of relationship between organism wherein they reciprocally affects each others evolution.
The pyramid is not shaped like a typical pyramid, because the bottom should be bigger and getting smaller on top.
Based on the graph, the correct answer is D) The wolf carrying-capacity rises as moose populations increase, but with a delayed effect.
Please note that it is useful to add the options provided with the question, in order to get an accurate answer and have your question answered quicker.
Hope this helps!!