Cerebrospinal Fluid
Produced by the choroid plexuses of the brain, the cerebral spinal fluid is contained in the subarachnoid cavity and spinal canal. It is reabsorbed by the arachnoid granulations.
Besides acting as a cushion for the CNS, the cerebral spinal fluid plays a critical part in the immunology of the central nervous system, blood flow in the CNS and autoregulation.
Have you got the list of characteristics on you? If not, both contain cells with chloroplasts, which is used to carry out the photosynthesis. Hope this helps.
The answer, I believe, would be C) A decrease in the wolf population - because the prey decreases, fewer wolves will be able to find food, which will lead to a decrease in their population.
