As natural selection acts solely by accumulating slight, successive, favourable variations, it can produce no great or sudden modification; it can act only by very short and slow steps.
As natural selection acts solely by accumulating slight, successive, favourable variations, it can produce no great or sudden modifications; it can act only by short and slow steps.
And if, in a series of generations, the acquired character continuously increases in strength, this must be due to the continued selection of favourable variations.
For it is clear that if new or favourable variations arise in this way, the germinal union cannot be a mere mixture, but an organic combination.
And in sexual reproduction we have a constantly varying series of experiments in germinal combinations, some of which, we may fairly suppose, will be successful in giving rise to new or favourable variations.
Wright, and that part I should like to see reprinted; but I always thought you laid too much stress on the slowness of the action of Natural Selection owing to the smallness and rarity of favourable variations.
There is no recognition of that further cause disclosed in Mr. Darwin's work, published two and a half years later--the indirect adaptation resulting from the natural selection of favourable variations.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "favourable variations" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.