No one can draw any clear distinction between individual differences and slight varieties; or between more plainly marked varieties and sub-species, and species.
Here the distinction between adaptive and non-adaptive characters is recognised, but both are emphatically attributed to the same origin.
Swifts and swallows are similar in adaptive characters, but not in those which show relationship.
If we turn to other groups of animals we find everywhere similar evidence of the distinction between adaptive and non-adaptive characters.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "adaptive characters" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
