"That the fittest members of a species will survive" is certainly not a very accurate answer for the principals of Natural Selection.
Fitness in this context refers to the ability of a species to reproduce, i.e. The fittest is the one that reproduces the most.
Here are the basics
Natural selection
That is Darwin's principal of Natural Selection, sometimes called survival of the fittest.
Its NaTuRaL sElEcTiOn if you didn't know.
natural selection
Adaptation does not allow for natural selection: natural selection causes adaptation.
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
Natural selection is what causes adaptation.
No, natural selection is the mechanism that drivesevolution.
Adaptation is the result of natural selection.
Natural selection.
Natural Selection
That selection was natural.