Changes in the environment can alter the dynamics of natural selection in predator–prey relationships. As the planet continues to warm, climate change will have a significant effect on many of these relationships. In the case of the snowshoe hare, loss of winter snow cover could make the species more vulnerable to its predator, the lynx. The fur of snowshoe hares turns white in the winter months, providing camouflage in the snow. Which prediction would best fit a hypothesis of continued antagonistic coevolution between these two species in a year-round, snow-free environment?

The coevolution is best explained by  using the interaction of selective pressure (lyrnx) and the adaptation for survival(snowshoe/ snow)

Explanation:

The  camouflage by the snow of the brown hare gives them selective advantage to remain undetected within the population during winter.since the allele for year -round brown fur within the snowshoe population, will be protected during  winter by the slow, (adaptation for survival) this  ensures survival, from selective pressure -Lynx, and gives them rooms for  natural selection by nature for evolution.

Lynx, which preys on the brown  snowshoe hares, in snow free environment will have better survival advantage for food, and therefore reproduction . Since  the snow which camouflage them from the prey, has been removed by climatic change,Their population  will therefore be naturally selected and evolved.

Thus the two organisms-Lynx and Snowshoe hare will co-evolve

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products