Originally posted by The Cougar
No, actually the process that is fueling the spread of MRSA is called natural selection, not evolution, unless you further divide the term, "evolution" into macro- and micro-evolution. Some use the term "microevolution" when they actually mean natural selection. Natural selection is when a particular form of organism that is more adapted to it's enviro ...[text shortened]... ake these new organisms, which could never happen by chance, random processes, and time.
You really should read threads before posting. This arguement has been presented and refuted many times already. I can't be bothered writing a new response, so here is one I gave to someone on the "what's wrong with evolution" thread:
Your only complaint about evolutionary theory is that there is no evidence that species arise from other species (as opposed to, for instance, all arriving together in an arc). This, however, is happening while we speak. A case example is dogs. According to evolutionary theory, all dogs came from the same common ancestor, and in fact share so much of their DNA that they are still technically considered the same species. However, according to the dictionary definition for species as being a "taxonomic group whose members can interbreed", great danes and chihauhaus are definitely not the same species. This is a case where breeders (I don't think they like to be called dog farmers) have selectively bred as animal of one species and produces several new ones. Oh, and don't say every type of dog came over on the arc, because many breeds have not been around nearly that long.
Not convinced? How about the case of mules? A mule is the offspring of a male donkey and a female horse (two species that do not even have the same number of chromosomes). It is almost always sterile, but is able to reproduce. Another example of farmers selectively breeding one species from another.
Evolution is a gradual process. You don't breed two dogs and get a cow. However, you might breed two dogs and get a really big dog with a funny head, then breed that dog to get more big dogs of which one has a funny tail, etc. Eventually you get something which looks nothing like your original, and in fact can be classed as a different species.
To boil it down for you, it is the telephone effect. You know the game where you whisper one thing in someone's ear, and by the time it gets around the circle the last person hears something completely different? At any point along the way, small changes get made, which eventually add up to a completely different sentence.
I think you are confused about the concept of macroevolution. It is not some separate evolutionary concept, but simply microevolution over a long period. I assume you accept microevolution (if you don't, I think you are beyond help), so if it exists in the present, why shouldn't it have existed in the past?
Oh, and don't give me an answer that involves changing from one species into another as a difference for macro and microevolution. By the dictionary definition of species that I gave you, microevolution (as in my example of dogs) can cause changes of species. If you are working with another definition, please explain what it is before you use the word "species" again.
By the way, evolution is not random. Whatever survives to reproduce gets selected for. It's not a hard concept, really, and definitely does not require divine direction.