I do not say 'fittest,' because it is ordinarily understood to mean that the survivors have some morphological features, by which they are benefited, which lead on finally to specific characters.
On referring to all the passages indicated by him I find that, in regard to specific characters, Mr. Darwin is very cautious in admitting inutility.
In any case, we are dealing at present with the utility of specific characters to the species which possess them; and under the head of utility we are including usefulness in effecting or maintaining segregation.
In numerous cases of anomalies some accidental structures are parallel to specific characters, while others are not, being obviously injurious to their bearers.
Once acquired this habit would become fixed and attain the rank of specific characters.
The reproduction of specific characters by anomalous ascidia is not at all limited to the general case as described above.
Specific characters occurring in other cases as casual anomalies.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "specific characters" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.