How does the structure and/or the presence of DNA in all living cells help support the theory of evolution?

Explanation:

DNA, in a way, controls the growth and appearance of living organisms. Since evolution is based on ancestry motives, living organisms with their ancestry features somehow carry their traits and or appearance.

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if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.