I believe your pointing to number 16, I believe the answer is B
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The amount of sagebrush would increase, which would lead to an increased population of jackrabbits, as sagebrush their food source. As the amount of jackrabbits increase, it gets easier for coyotes to hunt for them which in return, increases their survival rate/population.
All domestic mammals have seven cervical vertebrae.
Nonpoint source so your answer would be B.
