Quote Originally Posted by Ice
Well, I thought when I put (An ape turning into a human) in () people would understand what macroevolution is. But for the record...

Macroevolution: A species evolving from another species. The new species cannot mate with the other species.

Microevolution: A species evolving favorable traits. The the favorable trait being can still mate with the other one.
Evolution should not be defined as evolving favorable traits. That is putting the cart before the horse. Cause then effect not effect then cause.

Quote Originally Posted by www.answers.com
evolution
3. Biology a)"Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species."
Favorable traits is what is selected, not what causes the change nor what does the selection.

In Natural Selection it is the environment that does the selection which results in the species best suited for the current environment to propagate over the ones that are less suited for the current environment.

In Artificial Selection it is humans (a self aware sub-component of the environment) which selects which set of organisms will get to propagate the next generation.

What causes the change in the organisms is the combination of genes. Just combining genes in different combinations allows variation in organisms. Mutation of genes can then allow totally new organisms to come about.