Action of Natural Selection, through Divergence of Character and Extinction, on the descendants from a common parent.
In his view, not only all the individuals of a species are descendants of a common parent, but of all the related species also.
The orthodox conception of species is that of lineal descent: all the descendants of a common parent, and no other, constitute a species; they have a certain identity because of their descent, by which they are supposed to be recognizable.
It was shown that this theory requires a long series of intermediate forms between the species and groups in the same classes--forms not directly intermediate between existing species, but intermediate with a common parent.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "common parent" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
