Many experiments have been done on the capacity of living systems to respond to selective pressure. Suppose I take a single bacteria, grow it up into a colony, then plate it on ten different plates that I will subject to ten different pressures (heat, cold, pressure, antibiotics, starvation, etc). Do you suppose that....
a) all bacteria will be the same but not grow as well because of the pressures.
b) all the bacteria will die
c) the heat treated bacteria will accumulate mutations that allow them to tolerate and grow faster at high temperature.
This type of experiment has been done many times. A recent experiment with heat resistant bacteria showed that a particular colony went through EVERY POSSIBLE single point change until the survivors were left with a version of the protein that allowed for high temperature survival.
If the big bugaboo that some believers have with Evolution is randomness, how is randomness a factor when every possible combination is attempted until only the most beneficial version is present in the population?
Sure doesn’t seem random to me. Or a system constantly in need of “Incompetent Design” tinkering.
Again, the problem with the claims of evolutionists that single-cell organisms evolved into humans is that evolutionists have never satisfied the "show me" aspect such a claim by making a human starting with a single-cell organism.
Indeed, the claim that man can walk on the moon would still be regarded as science fiction if it weren't for the "show me" results of actually doing so. That is, successfully applying a process, sending a man to the moon, based on the consistent results of repeatable, scientific-method based experiments dealing with gravity, rocket fuel, etc..
The bottom line is that, as opposed to ever having proved evolution to yourself by evolving a human from a single-cell organism in "Evolution 101" lab, you are ultimately accepting evolution by faith as much as Christians accept Bible realities by faith.
“Many experiments have been done on the capacity of living systems to respond to selective pressure.”
And after all those experiments on those organisms, what do you have as a result? They are still bacteria, aren’t they?
Obviously Natural Selection is testable and repeatable.
But that’s the problem with Evolution. No one actually observes the jump from one organism to a different one under controlled conditions. There are differences in characteristics but it’s still classified as the same type of organism.