It is very clear that you do not understand random mutations.
When these mutations combined it did offer a reproductive advantage.
I thought that perhaps random mutations were mutations that occured randomly.
So a neutral mutation occured. But somehow, while offering no selective advantage, came to predominate in the offspring. Then other neutral mutations occured, each one individually offering no selective advantage, but also came to predominate in the DNA. But then the neutral mutations came together and built a better mousetrap. Is that it?
What you are calling micro-evolution is adaptation. And adaptation is NOT evolution, nor does adaptation become evolution over time. There are not ‘intermediary forms’ of animals found in any fossil remains. None.
Man has bred and re-bred dogs to get characteristics that are useful, ALL are still dogs, none are yet a dolphin. A type of animal can adapt to its environment, BUT, in the end, it is still that kind of animal.
It appears from your tagline that you are perhaps a Christian. If so, why do you seek to not only disbelieve Gods Word, but also to publicly attempt to discredit it?