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

the right is separation by density .

take the blood which is a good example of a heterogeneous mixture.

blood is a vital liquid in our body, which transports oxygen from the air to our lungs so we can breathe. it is also used to eject wastes, such as carbon dioxide, to bring cells and molecules of the immune system to the tissues, and to spread hormones throughout the body. it corresponds to plasma, red blood cells, white blood cells, platelets and hemoglobins combined.

in medical tests centrifugal force is used to separate the different components of the blood.

in general, the centrifugation will allow to separate and analyze the different components of the blood, to know if the rate of white blood cells in the blood of a patient, for example, is normal, and therefore to know if his system immune is integrity.

under the action of centrifugal force, the solid components in the blood are drawn to the bottom of the tube in which the blood is contained. the centrifugal force then acts as an accelerated settling. it separates plasma from red blood cells and white blood cells.