The most likely explanation for the increasing population of species X over species Y in an Arctic environment with wolves is: A) Species X is better adapted to its environment because it blends in with the snow in the winter.
The ability of species X to turn white in the winter and brown in the spring provides it with a camouflage advantage during the snowy season, making it less visible to predators like wolves.
This adaptation likely contributes to increased survival rates for species X during the critical winter period, allowing its population to gradually increase over time. Species X is better adapted to its environment because it blends in with the snow in the winter.